Augusto wants to prove to his parents that watching TV while he does his homework will help him get better grades. He decides to ask 20 of his friends if they watch TV while they do their homework and what their grades are. He finds that his friends who have high grades also watch TV while they do their homework. He tells his parents that he has proven that watching TV while doing homework will cause his grades to improve. What mistake has Augusto made?

Answers

Answer 1

Answer:

Augusto was biased and only asked his friends

Step-by-step explanation:

Augusto should've asked 20 random people, since the people he hangs around the most probably have the same habits

This was not a fair collection of data

Answer 2

He did not use a random sample, and he tried to show cause and effect with an observational study


Related Questions

Paloma eats 2/3
of an apple in the morning and 3/8 more in the afternoon. How
much of the apple did she eat in total?

Answers

Answer:

25/24    or    1 and 1/24

Step-by-step explanation:

2/3 + 3/8 = 16/24 + 9/24 = 25/24 or 1 1/24

Tom deposited $2,410 in a bank that pays 12% interest compounded monthly find the amount he will have at the end of three years​

Answers

Answer: 3448.15

Step-by-step explanation:

The formula is

A=p ((1+(r/n))^(tn)

A future value ?

P present value 2410

R interest rate 0.12

N compounded monthly 12

T time 3 years

A=2,410×((1+(0.12÷12))^(3×12)

A=3448.15

Find the probability of spinning red on every spin​

Answers

y’all need to stop doing links!

y’all can get banned.... so yeah okay 623

find the volume of the following square pyramid. geometry hw

Answers

Given:

The square base pyramid with height 3 cm and base edge 2 cm.

To find:

The volume of the square pyramid.

Solution:

Volume of a square base pyramid is:

[tex]V=\dfrac{1}{3}Bh[/tex]            ...(i)

Where, B is the base area and h is the height of the pyramid.

Base is a square with edge 2 cm, so the base area is:

[tex]B=a\times a[/tex]

Where, a is the edge of the square base.

[tex]B=2\times 2[/tex]

[tex]B=4[/tex]

Putting [tex]B=4,h=3[/tex] in (i), we get

[tex]V=\dfrac{1}{3}(4)(3)[/tex]

[tex]V=4[/tex]

Therefore, the volume of the given pyramid is 4 cm³.

Determine the solution to this equation y= 3X + 1. 3y- 5x =11

Answers

Answer: y = 3,x =7

Step-by-step explanation:

Here are some points. What is 2/5 out of twenty?

Answers

Answer:

8

Step-by-step explanation:

You just need to multiply 20 by 2/5

Or, multiply 20 by 2, then divide by 5.

20 x 2/5

40/5

8

2/5 of 20 = 40/5 or simply, 8.

Have a great day!

a business plants trees on 2/4 acre of land each month for 7 months. how many acres of land does the business plant with trees after the 7 months?

a) 2/28
b) 14/28
c) 14/4
d) 30/4

please help. and please take this seriously, thank you.

Answers

Answer:

C) 14/4

Step-by-step explanation:

Multiply the amount of land per month by the number of months.

(2/4)(7) = 14/4 acres

Option C is correct, 14/4  acres of land does the business plant with trees after the 7 months

What is Fraction?

A fraction represents a part of a whole.

A business plants trees on 2/4 acre of land each month for 7 months.

We have to find the number of acres of land does the business plant with trees after the 7 months

To find this we have to multiply seven with two by four

7×2/4

14/4

Hence, 14/4  acres of land does the business plant with trees after the 7 months

To learn more on Fractions click:

https://brainly.com/question/10354322

#SPJ2

Sam is driving home from college. He is 220 miles away from home. If he can make it home in 4 hours, at what speed or velocity is he driving?
[Hint: Use d = vt.]

Answers

Answer: 55 miles per hour

Explanation: that hint is really useful
So if distance = velocity x time
That means 220 = v x 4 hours
To find v, divided 220 by 4
220 divided by 4 = 55
But I have a question:
Is he driving at a constant speed?
and is this 6th grade math? I’m in that grade but you can trust my answer
If im wrong, someone pls correct me
If im right, mark me brainliest pls, im broke, i have no points-
Goodluck!

....................

Answers

Answer:

11

Step-by-step explanation:

pleaseeeeeeeeeeeeeeeeeee help

Answers

Answer:

2x-7

-14

3x

x = 1

Step-by-step explanation:

What would 'x' be in the equation -3(x-2)=6?

Answers

Answer:

[tex]\boxed {\boxed {\sf x=0}}[/tex]

Step-by-step explanation:

To solve this equation, we must isolate the variable (x) using inverse operations.

[tex]-3(x-2)=6[/tex]

x-2 is being multiplied by -3. The inverse operation of multiplication is division, so we divide both sides by -3.

[tex]-3(x-2)/-3= 6/-3\\(x-2)=6 /-3 \\(x-2)= -2[/tex]

2 is being subtracted from x. The inverse operation of subtraction is addition, so add 2 to both sides of the equation.

[tex]x-2+2=-2+2\\x=-2+2\\x=0[/tex]

In this equation, x is equal to 0.

if the probability that will rain today is 5/8 what us the probability that it will not​

Answers

Answer:

3/8

Step-by-step explanation:

1 - 5/8 = 3/8

1-5/8

3/8

the probability that it will not rain ☔ is 3\8

What is the unit rate of 48 newspapers in 6 piles?

________ newspapers per pile

Answers

48/6= 8 so 8 newspaper piles


PLEASE HELP !! ILL GIVE BRAINLIEST !!

Answers

Answer:

129°

Step-by-step explanation:

the two angles are vertically opposite.

Answer:

angle f= angle g= 129°

Step-by-step explanation:

angle g and f are vertically opposite angles and hece should be equal.

Hope it helps. Please mark as the brainliest.

what is 20% of 3236.00​

Answers

647.2 is your answer

may you please help me with my newest question?

SOMEONE CAN HELP ME , PLEASE I NEED THIS NOW

Answers

You have 2 shapes, a rectangle and a half circle.

Area of rectangle = 3 x 8 = 24

Area of a half circle = 1/2 x pi x r^2

Area of half circle = 1/2 x 3.14 x 4^2

Area of half circle = 25.12

Total area = 24 + 25.12 = 49.12 square units

Answer:

You have 2 shapes, a rectangle and a half circle.

Area of rectangle = 3 x 8 = 24

Area of a half circle = 1/2 x pi x r^2

Area of half circle = 1/2 x 3.14 x 4^2

Area of half circle = 25.12

Total area = 24 + 25.12 = 49.12 square units

finished

Solve the simultaneous equations
x - 3y = -23
5x + 2y = 4

Answers

Answer:

(-2,7)

x= -2

y= 7

Step-by-step explanation:

We have

x-3y= -23

5x+2y=4

Let's solve this through substitution

let's start by adding 3y in the first equation

x= -23 +3y

plug this into the second one

5(-23+3y)+2y=4

-115+15y+2y=4

17y=119

y=7

Plug this y value into our first equation

x-3(7)= -23

x-21= -23

x= -2

x - 3y = -23

5x + 2y = 4

Answer:

(2,7)

Help me pls I need this answer

Answers

Answer:

Assuming that [tex] \overline{AOC} [/tex] is a diameter.

Given that [tex] m\angle{BAC} \: = \: 66° [/tex]

And that point O is the center of the circle

[tex] \boxed{m\angle{BAC} \: = \: 57°} [/tex]

Explanation:

Because angle AOB is subtended by arc AB from point O.

Arc AB is equal to the measure of that angle.

Since arc ABC is subtended by the diameter, the arc is 180°.

is √1/4rational or iraational

Answers

It is rational.

√1/4 = 1/4

Rectangle A B C D graphed in the coordinate plane. The following are the vertices of the rectangle: A(--2,2) B(6,2) C(6,3) D(--2,3)

What is the area of rectangle ABCD?

Answers

Answer:

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Answer:

Step-by-step explanation:

Find the area of the polygon.

Answers

Answer:

A = 372 units²

Step-by-step explanation:

The area (A) of a trapezium is calculated as

A = [tex]\frac{1}{2}[/tex] h (b₁ + b₂ )

where h is the perpendicular height and b₁, b₂ the parallel bases

Here h = 24 , b₁ = 24, b₂ = 7 , then

A = [tex]\frac{1}{2}[/tex] × 24 × (24 + 7) = 12 × 31 = 372 units²

What is the average rate of change for this exponential function for the
interval from x = 0 to x = 2?

A. -1.5
B. -4
C. 1.5
D. 4

Answers

Answer:

C i hope it helps

have a good night

alison earned $24 dollars by stocking shelves at grocery store for 3 hours

Answers

she got 8 dollars per hour

Please answer number 9 I’ll give brainliest thank you!

Answers

Answer:

C (95 people)

Step-by-step explanation:

380 is basically like 100% so 380÷100= 3.8 (which is equal to 1%), then use a calculator to do 3.8x25=95 (this makes 25%)

Answer:

C.95

Step-by-step explanation:

25/100=0.25

380*0.25=95

Three triangles are drawn on the same piece of paper such that no two sides are on the same line. What is the maximum number of points of intersection of the three triangles?

Answers

Answer:

6

Step-by-step explanation:

PLEASE HELP URGENT!!! 30 POINTS TO WHOEVER ANSWERS BOTH QUESTIONS!!
YOU DO NOT NEED TO SHOW YOUR WORK

The lengths of two sides of a triangle are given: 10 in and 3 in. What is the smallest possible whole number length for the third side?

The lengths of two sides of a triangle are given: 10 in and 3 in. What is the largest possible whole number length for the third side?

Answers

This isn’t 30 points this is 15

Last month the amount on Jaden's bank account statement went from $200 to $150.
What was the percent change? (the change is a 25% decrease. Ignore the top half.)
Please help! I will give brainlest

On this month's bank statement, the final balance was $240.

What percent of change was there this month?

Answers

Answer:

160%

1.6*150=240

Then k =






Answer and I will give you brainiliest

Answers

K=q(m+n-p)
Give brainlist don’t forget

find the geometric mean of 15 and 24

Answers

Answer:

Blank 1: 360

Blank 2: 6

Blank 3: 10

Step-by-step explanation:

Concept

-Geometric mean is the average of a set of products

Given

- Geometric mean of 15 and 24

Solve

√(15×24)=√360

√360=6√10

Hope this helps!! :)

Please let me know if you have any questions

It cost 5.50 for parking, plus an additional $8 for each concert ticket purchased. If joe starts off with a 50 dollar bill and buys 3 concert tickets and a 10$ T-shirt, how much money will he have left? PLEASE HELP

Answers

Answer:

$10.50

Step-by-step explanation:

50-[5.50+8(3)+10] =

50-39.50=

10.50

Answer:

$6.00

first multiply eight and three then add the two things joe bougth. then the answer minus 50

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