The error of rejecting the null hypothesis, when it is actually true is: alpha beta Type Il error Type I error

Answers

Answer 1

The error of rejecting the null hypothesis when it is actually true is known as a Type I error or alpha error. It represents the incorrect rejection of a null hypothesis that is true in reality.

Type I errors are associated with the significance level (alpha) chosen for a statistical test and occur when the test incorrectly concludes that there is a significant effect or relationship when there isn't one.

In hypothesis testing, the null hypothesis represents the assumption of no effect or no relationship between variables. The alternative hypothesis, on the other hand, suggests the presence of an effect or relationship. The significance level (alpha) is the threshold set by the researcher to determine the probability of rejecting the null hypothesis.

A Type I error occurs when the null hypothesis is true, but the statistical test incorrectly rejects it, leading to a false conclusion of a significant effect or relationship. This error is also known as a false positive. The probability of making a Type I error is denoted by alpha.

Type I errors are considered undesirable because they lead to incorrect conclusions and may result in wasted resources or inappropriate actions based on flawed evidence.

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Related Questions

use the image to answer the question.
A landscaper is building a triangular garden behind a house. The lot is bounded on one side by the house
that is 30 ft. long and on another side by a fence that is 50 ft. long. If the fence makes a 25° angle with the
house, how long is the third side of the garden? Round your answer to the nearest foot.

a. 26 ft.
b. 46 ft.
c. 69 ft.
d. 78 ft.

Answers

Answer: 26ft

Step-by-step explanation:

Which quadrant of a coordinate plane contains the point (-2,8) ?
A) Quadrant I
B) Quadrant II
C) Quadrant III
D) Quadrant IV

Answers

Answer:

Step-by-step explanation:

i think its C

If you buy one ticket in the Provincial Lottery, then the probability that you will win a prize is 0.11. If you buy one ticket every month for five months, what is the probability that you will win at least one prize?

Answers

The probability of winning at least one prize when buying one ticket each month for 5-months is (c) 0.44.

In order to calculate the probability of winning at least one prize when buying one ticket each month for five months, we use the complement rule. The complement of winning at least one prize is not winning any prize.

The probability of not winning any prize in a single month is 1 - 0.11 = 0.89 (because the probability of winning a prize is given as 0.11),

Since the events of not winning a prize in each month are independent, the probability of not winning a prize in all five months is (0.89)⁵,

So, the probability of winning at least one prize is 1 - (0.89)⁵ ≈ 1 - 0.5570 ≈ 0.443 ≈ 0.44,

Therefore, the correct option is (c).

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The given question is incomplete, the complete question is

If you buy one ticket in the Provincial Lottery, then the probability that you will win a prize is 0.11. If you buy one ticket each month for five months,

What is the probability that you will win at least one prize?

(a) 0.55

(b) 0.50

(c) 0.44

(d) 0.45

(e) 0.56

i need help pleaseeee

Answers

Answer:

Step-by-step explanation:

Answer: -6,-7,-8 etc.

Step-by-step explanation: -2 times -6 = 12 bc  a negative times a negative = a positive, and -2×-5=10 which is equal to 10 so if we try -6 it gives us 12 which is greater than 10.

Hope this helps!

Which expression is equivalent to
1/3b -7

Answers

Answer:

2/6b-7

Step-by-step explanation:

Answer:

1/3(b-21)

hope it helps :)

Question 6 of 20 :
Select the best answer for the question
6. The solution to 2 x 27 will be what kind of number?
A. Even
B. Odd
C. Prime
D. Perfect square
Mark for review (Will be highlighted on the review page)
<< Previous Question
NexhQuestion >>

Answers

Answer:

The answer is A. (an even number)

Step-by-step explanation:

2 x 27 is equivalent to 54 and 54 is an even number.

it is b because i said it

150 is 75% of what number?

Answers

Answer:

200

Step-by-step explanation:

0.75X = 150

X = 200

so 200 is the answer

Answer:

200

150 is 75% of 200

Step-by-step explanation:

150 is 75% of what number

we can change this so it is simpler to understand.

150 = 75% of x

whenever it says "of" it is telling you to multiply

150 = 75% * x

now we simplify

150 = 75/100 * x

150 = 75x/100

*100       *100

15000 = 75x

/75          /75

200  = x

150 is 75% of 200

which polynomial is prime? 3x3 3x2 – 2x – 2 3x3 – 2x2 3x – 4 4x3 2x2 6x 3 4x3 4x2 – 3x – 3

Answers

To determine which polynomial is prime, we need to check if it can be factored into simpler polynomials or if it is irreducible.

Let's analyze the given polynomials:

3x^3 + 3x^2 - 2x - 2

3x^3 - 2x^2 + 3x - 4

4x^3 + 2x^2 + 6x + 3

4x^3 + 4x^2 - 3x - 3

To determine if these polynomials are prime, we need to check if they can be factored further. If they cannot be factored into simpler polynomials, they are considered prime.

The polynomial 3x^3 + 3x^2 - 2x - 2 can be factored as (x + 1)(3x^2 - 2).

The polynomial 3x^3 - 2x^2 + 3x - 4 cannot be factored further.

The polynomial 4x^3 + 2x^2 + 6x + 3 can be factored as (2x + 1)(2x^2 + 3).

The polynomial 4x^3 + 4x^2 - 3x - 3 can be factored as (2x + 1)(2x^2 - 3).

Based on the factorizations, the only polynomial that is prime (cannot be factored further) is 3x^3 - 2x^2 + 3x - 4.

Therefore, the polynomial 3x^3 - 2x^2 + 3x - 4 is prime.

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Consider a binomial distribution. About 47% of Salinas residents bank entirely online. A random sample of 62 residents is selected. Find the probability that less than 21 bank entirely online. 0.0229 0.0339 None of these 0.0251 0.228

Answers

Given information: Consider a binomial distribution. About 47% of Salinas residents bank entirely online.

A random sample of 62 residents is selected. Find the probability that less than 21 bank entirely online. The given data follows binomial distribution with n = 62 and p = 0.47

Let X be the random variable representing the number of residents bank entirely online. Then X ~ B(62, 0.47) We need to find the probability that less than 21 bank entirely online. P(X < 21) = P(X ≤ 20)P(X ≤ 20) = ∑P(X = x) , where x = 0, 1, 2, 3, ... 20Using binomial probability distribution, P(X ≤ 20) = ∑P(X = x) , where x = 0, 1, 2, 3, ... 20P(X ≤ 20) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + ... + P(X = 20)P(X ≤ 20) = ∑P(X = x) , where x = 0, 1, 2, 3, ... 20P(X ≤ 20) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + ... + P(X = 20)P(X ≤ 20) = ∑P(X = x) , where x = 0, 1, 2, 3, ... 20P(X ≤ 20) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + ... + P(X = 20)P(X ≤ 20) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + ... + P(X = 20)

Now, we can use a calculator or software to find this sum. Using software or calculator, P(X ≤ 20) = 0.0251Therefore, the probability that less than 21 bank entirely online is 0.0251. Hence, the correct option is 0.0251.

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HELP A BRAINLY SISTA OUT!!!
Carl can paint a room 4 hours faster than Jennifer can. If they work together, they can complete the job in 6 hours. Using complete sentences, explain each step in figuring out how to determine the time it would take Jennifer to complete this job on her own. (10 points)

Answers

Jenifer can paint a room in 10 hours. When Carl helps the time is reduced to 6 hours.

Answer:

10 hours is Jennifer or 12

Step-by-step explanation:


PLS ANSWER DUE
TODAY! WILL
MARK BRAINLIEST
3. Find the measure of arc JK.
Hint - arc LK is a semi-circle!
Find JK

A) 90
B) 116
C) 128
D) 130

Answers

Answer:

Option C

Step-by-step explanation:

We will analyze the figure and note down the properties given in the figure,

1). LK is a diameter so this line (chord) divides the circle into two arcs measuring 180°.

m(arc LJK) = m(arc LK) = 180°

2). m(∠JKL) = 28°

Therefore, by the property inscribed angle and intercepted arcs,

Intercepted arc (JL) = 2 × (Inscribed angle JKL)

m(arc JL) = 2(26°)

               = 52°

Now we will use these two points to get the measure of arc JK.

m(arc JK) + m(arc LK) + m(arc JL) = 360°

m(arc JK) + 180° + 52° = 360°

m(arc JK) = 360° - 232°

                = 128°

Option C will be the correct option.

A quadrilateral has interior angles a, 112 degrees, 97 degrees, and 83 degrees. Find the missing angle measure in the quadrilateral. 83° + 97° + a° + 112° = 360° 292° + a° = 360° The measure of the missing angle is °.

Answers

Answer:

The missing angle is 68 degrees

Step-by-step explanation:

what’s 741.38 to five decimal places?

Answers

Answer:

Step-by-step explanation:

If you're referring to moving the decimal point five places to the left, your answer should be

.0074138

If you're referring to the right, your answer should be

74138000.

3(1+x2)dy/dx=2xy(y3-1)

Answers

If differential equation is 3(1+x^2)dy/dx = 2xy(y^3-1) then exponential is |y^3-1| = Ce^(x^2).

To solve the given differential equation, we can begin by separating the variables. We divide both sides of the equation by 2xy(y^3-1) to get:

3(1+x^2)dy/dx = 2xy(y^3-1)

(3(1+x^2))/(2xy(y^3-1)) dy = dx

Next, we integrate both sides with respect to their respective variables. On the left side, we integrate with respect to y, and on the right side, we integrate with respect to x:

∫(3(1+x^2))/(2xy(y^3-1)) dy = ∫dx

After evaluating the integrals, we obtain:

ln|y^3-1| = x^2 + C

Where C is the constant of integration. Finally, we can exponentiate both sides of the equation:

|y^3-1| = e^(x^2+C)

|y^3-1| = Ce^(x^2)

Here, Ce^(x^2) represents the constant of integration. Since the absolute value can be positive or negative, we consider both cases and solve for y to obtain the general solution.

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What inequality does this number line show?
I need this question in 11 hours QwQ ​

Answers

Answer:

X>8

Step-by-step explanation:

Open circle, going towards larger numbers, meaning it is greater than eight but not equal to.

Please answer correctly! I will mark you as Brainliest!

Answers

Answer: 1047.2

Step-by-step explanation:

V=(4/3)(pi)(r^3)

V=(4/3)(pi)(5^3)

=523.6

Since there are 2 pinatas, you multiply 523.6 by 2.

=1047.2

Find a formula for the nth term in this
arithmetic sequence
(picture is attached)
please help, thank you

Answers

Answer:

nth term: n+6

Step-by-step explanation:

a1 gives -7 and a2 gives -1. Let's compare these two numbers. From -7 to -1, we need a +6. Since -7 + 6 = -1.

a2 to a3, -1 + 6 = 5

a3 to a4, -5 + 6 = 11

MY HEALTH TEACHER JUST DEFIED MATH APARENTLY 1+1=3 NOT 2
WHAT DOES SOMEONE SAY TO THAT

Answers

Answer:

I honestly am very confused

Step-by-step explanation:

Solve the following initial value problem. cos^2 (x) sin x dy/dx + (cos^3 (x))y = 5 ; y(π/3) = 4

Answers

The solution to the initial value problem [tex]cos^{2xsinx}dy/dx + cos^{3(x)}y = 5, y(\pi/3) = 4[/tex], involves solving the given differential equation and applying the initial condition.

To solve the differential equation, we can use an integrating factor. The integrating factor for the given equation is [tex]e^{\int{cos^3x} \, dx}[/tex]. Integrating [tex]cos^3(x)[/tex] gives us (1/4)(3sin(x) + sin(3x)).

Multiplying the entire equation by the integrating factor, we get [tex](1/4)(3sin(x) + sin(3x)) * cos^2(x)sin(x) * dy/dx + (1/4)(3sin(x) + sin(3x)) * cos^3(x) * y = 5 * (1/4)(3sin(x) + sin(3x))[/tex]

Simplifying, we have [tex](3sin(x) + sin(3x)) * cos(x)sin^2(x) * dy/dx + (3sin(x) + sin(3x)) * cos^3(x) * y = 5 * (3sin(x) + sin(3x))/4[/tex]

This equation can be rewritten as [tex]d/dx[(3sin(x) + sin(3x)) * cos^2(x) * y] = 5 * (3sin(x) + sin(3x))/4[/tex].

Integrating both sides with respect to x, we obtain [tex](3sin(x) + sin(3x)) * cos^2(x) * y = 5 * (3sin(x) + sin(3x))/4 * x + C[/tex], where C is the constant of integration.

Applying the initial condition y(π/3) = 4, we can substitute x = π/3 and y = 4 into the equation to find the value of C.

By substituting the values, we get [tex](3sin(\pi /3) + sin(3\pi/3)) * cos^2(\pi/3) * 4 = 5 * (3sin(\pi/3) + sin(3\pi/3))/4 * (\pi/3) + C[/tex]

Simplifying and solving for C, we can determine the value of C.

Finally, we can substitute the value of C back into the equation to obtain the solution to the initial value problem.

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Camden invested $260 in an account paying an interest rate of 4-1/8 % compounded annually. Evan invested $260 in an account paying an interest rate of 3-7/8 compounded continuously. After 13 years, how much more money would camden have in his account than Evan, to the nearest dollar

Answers

Answer:

$5500

Step-by-step explanation:

trish wants to buy x oranges and y mangoes which she intends to carry in her bag. Her bag has space for only 6 fruits. Write an inequality to represent this information.

Answers

Answer:

x + y [tex]\leq 6[/tex]

Step-by-step explanation:

The amount of Oranges (x) and the amount of Mangoes (y) will add up to be less than or equal to 6.  

This condition is represented by the inequality x + y ≤ 6

What is inequality?

In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign ()" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.

In this case, Trish wants to buy x oranges and y mangoes, and she intends to carry them in her bag.

Her bag can hold a maximum of 6 fruits.

Since she wants to buy both types of fruit, the total number of fruits must be less than or equal to 6.

The inequality to represent this situation is:

x + y ≤ 6

This inequality represents that the sum of the number of oranges and mangoes Trish buys should be less than or equal to 6, which is the maximum number of fruits her bag can hold.

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Use the following graph to solve the equation 3n + 7 = 52

Answers

Answer:

[tex]3n + 7 = 52 \\ 3n = 52 - 7 \\ 3n = 45 \\ n = \frac{45}{3} \\ n = 15[/tex]

Graph is not inserted.

Hopes this helps:

Answer: 15

1. Subtract 7 from both sides.
3n = 52 - 7


2. Simplify 52 - 7 to 45.
3n = 45


3. Divided both sides by 3.
N = 45/3


4. Simplify 45/3 to 15.
N = 15

If a particular extrusion process is 94% efficient, how many linear feet of 1.7-in. diameter steel cable can be produced from a block of steel 10 ft long with a 16-in. by 16-in. cross section? The linear feet of the steel that can be produced is feet. (Round to the nearest foot as needed.) Enter your answer in the answer box and then click Check Answer

Answers

The linear feet of steel cable that can be produced is approximately 1,469 feet.

To find the linear feet of steel cable that can be produced, we need to calculate the volume of the block of steel and then consider the efficiency of the extrusion process.

1. Cross-sectional area of the block:

Cross-sectional area = (16 in.) * (16 in.) = 256 in²

Converted to square feet: 256 in² * 0.00694 ft²/in² = 1.77778 ft²

2. Volume of the block:

Volume = Cross-sectional area * Length = 1.77778 ft² * 10 ft = 17.7778 ft³

3. Usable volume after considering the efficiency:

Usable volume = Efficiency * Volume = 0.94 * 17.7778 ft³ = 16.7044 ft³

4. Cross-sectional area of the cable:

Cross-sectional area = π * (0.85 in.)²

Converted to square feet: Cross-sectional area = π * (0.85 in.)² / 144 in²/ft²

5. Linear feet of steel cable produced:

Linear feet = Usable volume / Cross-sectional area of the cable

Linear feet = 16.7044 ft³ / (π * (0.85 in.)² / 144 in²/ft²) = 1468.672 ft

Rounded to the nearest foot, the result is approximately 1,469 feet.

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Describing How to Create a System of Equations
2
Using the equation y=-x-5, describe how to create a
system of linear equations with an infinite number of
solutions
}

Answers

Answer:This seems easy! do u want help on how to do the answer or r u just looking for the answer????/

Step-by-step explanation:


A company is reviewing a batch of 25 products to determine if
any are defective. On average, 3.1% of products are defective.
Does this situation describe a binomial experiment, and why?
What is the pr

Answers

The probability that the company will find 2 or fewer defective products in this batch is approximately 0.995. The probability that 4 or more defective products are found in this batch is approximately 0.005. The decision to stop production would depend on various factors and cannot be determined solely based on finding 5 defective products.

Yes, this situation can be described as a binomial experiment. A binomial experiment has the following characteristics:

It consists of a fixed number of trials or observations.Each trial has only two possible outcomes, success or failure.The probability of success remains constant for each trial.The trials are independent of each other.

To calculate the probability that the company will find 2 or fewer defective products in this batch, we need to calculate the probabilities for each possible outcome (0, 1, and 2 defective products) and sum them up.

Let's denote the probability of finding a defective product as p, which is 3.1% or 0.031 in decimal form.

[tex]P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2)\\P(X = 0) = C(25, 0) * p^0 * (1 - p)^{25 - 0}\\P(X = 1) = C(25, 1) * p^1 * (1 - p)^{25 - 1}\\P(X = 2) = C(25, 2) * p^2 * (1 - p)^{25 - 2}[/tex]

Using the binomial coefficient formula C(n, r) = n! / (r!(n - r)!), we can calculate these probabilities:

[tex]P(X = 0) = C(25, 0) * 0.031^0 * (1 - 0.031)^{25 - 0}\\ = 1 * 1 * (0.969)^{25}\\ = 0.643\\P(X = 1) = C(25, 1) * 0.031^1 * (1 - 0.031)^{25 - 1}\\ = 25 * 0.031 * (0.969)^{24}\\ = 0.295\\P(X = 2) = C(25, 2) * 0.031^2 * (1 - 0.031)^{25 - 2}\\ = 300 * 0.031^2 * (0.969)^{23}\\ = 0.057\\P(X \leq 2) = 0.643 + 0.295 + 0.057\\ = 0.995[/tex]

Therefore, the probability that the company will find 2 or fewer defective products in this batch is approximately 0.995.

To calculate the probability that 4 or more defective products are found in this batch, we can use the complement rule:

[tex]P(X \geq 4) = 1 - P(X \leq 3)\\P(X = 3) = C(25, 3) * 0.031^3 * (1 - 0.031)^{25 - 3}\\ = 2300 * 0.031^3 * (0.969)^{22}\\ = 0.040\\P(X \geq 4) = 1 - P(X \leq 3)\\ = 1 - (P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3))\\ = 1 - (0.643 + 0.295 + 0.057 + 0.040)\\ = 1 - 0.995\\ = 0.005[/tex]

Therefore, the probability that 4 or more defective products are found in this batch is approximately 0.005.

If the company finds 5 defective products in this batch, it does not necessarily mean that they should stop production. The decision to stop production would depend on various factors such as the acceptable level of defects, the cost of production, the impact on customer satisfaction, etc. It would require a more comprehensive analysis to make a decision in this regard.

Complete Question:

A company is reviewing a batch of 25 products to determine if any are defective. On average, 3.1% of products are defective. Does this situation describe a binomial experiment, and why? What is the probability that the company will find 2 or fewer defective products in this batch? What is the probability that 4 or more defective products are found in this batch? If the company finds 5 defective products in this batch, should the company stop production?

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Find SQ?
Find m<QRS?​

Answers

Answer:

6. 26. 7. 34

Step-by-step explanation:

6.) 13+13=26. 7.) 17+17=34


Using a standard deck of 52 cards, what is the probability that a
randomly dealt 6-card hand contains all hearts?

Answers

The probability that a randomly dealt 6-card hand contains all hearts is approximately 0.0000844, or about 0.00844%.

To calculate the probability of a randomly dealt 6-card hand containing all hearts, we need to determine the number of favorable outcomes and the total number of possible outcomes.

Favorable outcomes: A 6-card hand containing all hearts consists of 6 hearts from the deck.

There are 13 hearts in a standard deck of 52 cards, so we can choose 6 hearts from the 13 available. This can be calculated using combinations:

Number of favorable outcomes = C(13, 6) = 13! / (6! × (13 - 6)!) = 13! / (6! × 7!) = 1716

Total number of possible outcomes: The total number of 6-card hands that can be dealt from a standard deck of 52 cards is C(52, 6):

Number of possible outcomes = C(52, 6) = 52! / (6! × (52 - 6)!) = 52! / (6! × 46!) = 20358520

Therefore, the probability of a randomly dealt 6-card hand containing all hearts is:

Probability = Number of favorable outcomes / Number of possible outcomes = 1716 / 20358520 ≈ 0.0000844

So, the probability is approximately 0.0000844, or about 0.00844%.

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In ΔLMN, l = 32 inches, m = 37 inches and n=46 inches. Find the area of ΔLMN to the nearest 10th of an square inch.

Answers

Answer:

587.9

Step-by-step explanation:

Delta math

1. A caterer charges a flat fee plus $8.50 per
person. If the total cost for a party of 65 people
was $601.50, how much would they charge for
a party of 150 people?

Answers

Answer:

$1,324

Step-by-step explanation:

$8.50 * 65 = $552.50. $601.50 - $552.50 = $49. So the flat fee would be $49.

$8.50* 150 = $1,275. With the flat fee it would be $1,275+$49 = $1,324.

This equation shows how the cost of a corporate team-building event depends on the number
of attendees d=5a + 3 the variable represents the number of attendees and the variable d represents the cost in dollars. If there are 3 attendees, how much will the corporate team-building event cost?

Answers

D=18 it would cost $18
Other Questions
use a reference angle to write sec290 (where the angle is measured in degrees) in terms of the secant of a positive acute angle. do not include the degree symbol in your answer. La influencia que tiene la temperatura en la reproduccin de los paramecios, en muestras de agua estancada which is the correct range for the temperature danger zone? question 2 options: 0-32f 40-100f 40-140f 100-200f What percent of a day does this child spend doing homework? (Round to the nearest whole percent) What causes wave-cut cliffs to form? please explain every step it's related about tripleintegral and cylinderical coordinates2. Set up the triple integral in cylindrical coordinates to integrate the function f(x, y, z)=(2x' +2y+)over the solid region D that is inside the cylinder x + y =9, below the plane z=-x+4, and above Marissa has a yard service to help people in her neighborhood. She earns $15 for each lawn she mows, $10 for each yard she weeds, and $5 for each yard she rakes. This month Marissa spent $3 on flyers to send out to neighbors, she purchased a new blower for $26, and paid her brother $18 for helping her mow lawns. If Marissa mowed 4 lawns and raked 8 yards, how much money did she make in profit? 1. 53 2. 100 3. 36 4. 71 . ___________________ is the process of plants releasing oxygen into the environment? Select the correct answer.Which statement correctly compares the graph of function g with the graph of function ??FE) = e-g(x) = - 4O A.OB.O C.O D.The graph of function g is a horizontal shift of the graph of function to the right.The graph of function g is a vertical stretch of the graph of function f.The graph of function g is a vertical compression of the graph of function f.The graph of function g is a horizontal shift of the graph of function f to the left.ResetNext Which transitional word or phrase is most appropriate for an essay that is organized chronologically?Next,All in all,On the other hand,However, 8 divided by 618 .............. Let W = {a + 2x + bx^2 P2 : a, b R} with the standard operations in P2. Which of the following statements is true? A. W is not a subspace of P2 because 0 W. The above is trueB. W is a subspace of P2. The above is true C. None of the mentioned D. 1+xEW At some temperature for the equilibrium PX3(g) + X2(g) # PX5(g) the equilibrium constant is 0.74. At the same temperature the equilibrium constant for PX5(9) + PX3(g) X2(g) is 11) In the NASDAQ stock exchange, traders bid on stocks and sellers demand a specific price using a network of computers to trade electronically rather than through open outcry. What type of stock market is this considered to be?A. neutralB. physicalC. virtualD. rational Which of the following accurately contrasts genotype and phenotype?1. A genotype is traits that are passed on genetically, while a phenotype is traits that are developed environmentally.2. A genotype is genetic traits that are inherited from the father, while a phenotype is traits passed from the mother.3. A genotype is genetic traits that cannot be observed, while a phenotype refers to observable traits.4. A genotype is traits that are not predictable, while a phenotype refers to traits that can be predicted. A math teacher is trying to analyze her test grades. She surveys the students to find out how many minutes they studied. She then makes a scatterplot of time studying and test grades. What is the domain?A)the students' grades on their testsB)the number of students in the classC)the different courses the teacher teachesD)the number of minutes the students studied The radius of a sector is 1 ma. Find the area of a 1 sector of the circle.b. What is the area of the circle containing the sector?c. If 360 of the 1 sectors of the circle are placed side by side to approximate a parallelogram, what is the approximate area of the parallelogram?d. What is the difference of the areas in parts (b) and (c) as a percentage of the entire circle? the original settlers in iceland Suppose you own two Domino's Pizza franchises in your town. After reading the latest issue of Pizza Monthly, you have concluded that both of your locations are generating below average revenue. You hire a local economics professor to conduct a pricing experiment. Here is her report: Location 1: A 10% increase in price resulted in a 5% drop in the quantity demanded. Location 2: A 10% increase in the price resulted in a 20% drop in the quantity demanded. Using this information, how should you alter your pricing policy to increase your revenue at each location? Which of the following are ways in which an entrepreneur earns a profit? Check all that apply.a. By exploiting arbitrage opportunitiesb. By paying wages, interest, and rent to other factors of productionc. By making entrepreneurial judgments in the face of uncertainty