A random sample of students were surveyed as to how much non-school screen time

they had each week (for purposes of the survey, screen time was defined as: time

spent online, on social media, watching TV, or playing video games) and if their grade

average was above or below 80.

Screen Time

above below

8

8

less than 4 hours

18

16

4-8 hours

20

16

8-12 hours

11

17

more than 12 hours

What percent of the students who spend 4-8 hours a week on screens reported a

grade average above 802 Round your answer to the nearest tenth of a percent.

Answers

Answer 1

Answer:

the answer is 25 .

Step-by-step explanation:


Related Questions

Which role had the lowest median change TIMED TEST

Answers

Answer:

22 years old

Step-by-step explanation:

each Saturday morning Janie works 5 hours and earns $35.75. How much does Janie earn for each hour she works?

Answers

Answer:

$7.15

Step-by-step explanation:

You would get this by dividing $35.75 by 5.

Plzz help meee!

A. Break up the figure into a 2 ft by 3ſ it triangle and a 5 ft by § ft rectangle.

B.Break up the figure into a 2 ft by 5 ft triangle and a 5 ft by 3 ft rectangle.

C.Break up the figure into a 2 ft by § ft triangle and a 5 ft by § ft rectangle.

D.Break up the figure into a 2 ft by 13 ft triangle and a 5 ft by 3 ft rectangle.

Answers

Answer:

Step-by-step explanation:


Area is calculated by multiplying the length of a shape by its width. In this case, we could work out the area of this rectangle even if it wasn't on squared paper, just by working out 5cm x 5cm = 25cm² (the shape is not drawn to scale). Hope this helps

I need help with this

Answers

i cannot help with all this but 16 would be 33 ft

Can someone help me with this question?

Answers

Answer:

m = 4

Step-by-step explanation:

[tex] \because ABCD\sim QRST[/tex]

[tex] \therefore \frac{10}{m}= \frac{15}{6}[/tex]

[tex] \therefore m= \frac{10\times 6}{15}[/tex]

[tex] \therefore m= \frac{60}{15}[/tex]

[tex] \therefore m=4[/tex]

HELP PLEASE ILL GIVE BRAINLIEST IF I CAN
Victor was designing a new office. Every 2 inches on his scale drawing represented 7 feet on the new office. If the length of the conference room on the scale drawing was 9 inches, how long was the actual conference room?


A. 63 ft

B. 25 ft

C. 31.5 ft

D. 35.5 ft

Answers

I believe the answer is c
I believe the answer is C

Realiza las siguientes multiplicaciones
a) (+27) ⋅ (+2) =
b) (+12) ⋅ (−13) =
c) (−10) ⋅ (+10) =
d) (−56) ⋅ (+89) =
e) (−100) ⋅ (−135) =
f) (+553) ⋅ (+24) =

Answers

Answer:

A 54

b -156

c -100

d -4984

e 13500

f 13272

I really need help! will give brainliest!!

Answers

Answer: æą§đēğ

Step-by-step explanation:

How to simplify (-4)(-4)

Answers

Answer:

How to simplify (-4)(-4)

-4×-4=16

Answer:

The answer is 16. Two negatives make a positive.

Solve for the value of v: V+27=117

Answers

v+27=117
Subtract 27 to 117:
v=90
The answer is v=90.

x is 16% of 31.25 what is the answer

Answers

Answer: 5

Step-by-step explanation:

Answer:

5

Step-by-step explanation: 31.25 X 0.16=5

What is the area of the rectangle above?
A.
14 square units
B.
28 square units
C.
44 square units
D.
33 square units

Answers

Answer:

A = 33 units^2

Step-by-step explanation:

The area of a rectangle is given by

A = l*w  where l is the length and w is the width

A = 11 * 3

A = 33 units^2

Answer:

D. 33 square units

Step-by-step explanation:

A=wl=3x11=33

Find y
A)10
B)2
C)15
D)4

Answers

Answer:

y = 4

Step-by-step explanation:

3y = y + 8

3y - y = 8

2y = 8

y = 8÷2

y = 4

Answer:

4

Step-by-step explanation:

this is the question down below it also has options to choose​

Answers

Answer:

Sorry, this answer has been removed and the account has been banned for 17 hours, 19 minutes and 52 seconds

Step-by-step explanation:

Answer:

Were is the problem?

Step-by-step explanation:

Which cylinder will have larger volume

Answers

Answer:wheres the photo at doe

Step-by-step explanation:

I need a picture of the cylinders before i am able to answer the question.

The sample space of a random experiment is {a, b, c, d, e, f}, and each outcome is equally likely. A random variable is defined as follows:
Outcome a b c d e f
X 0 0 1.4 1.4 2 3
Determine the probability mass function of X. Use the probability mass function to determine the following probabilities.
A) P(X = 1.6).B) P(0.5 < X < 2.7).C) P(X > 3).D) P(0 ≤ X < 2).E) P(X = 0 or X = 2).

Answers

Answer:

X ____ : 0 ______ 1.4 _____ 2 _____ 3

P(X) ___ 1/3 _____ 1/3 _____ 1/6 ____ 1/6 ;

0 ;

1/2 ;

0 ;

2/3 ;

1/2

Step-by-step explanation:

Each has the same probability ;

X ___ : 0 ___ 0 ___ 1.4 ____1.4 ___ 2 ___ 3

P(x) __ 1/6 __1/6 ___ 1/6 ___ 1/6 ___1/6 __ 1/6

Probability : required outcome / Total possible outcomes

X = 0

P(x = 0) = 1/6 + 1/6 = 2/6 = 1/3

X = 1.4

P(x = 1.4) = 1/6 + 1/6 = 2/6 = 1/3

X = 2

P(X) = 1/6

X = 3

P(x) = 1/6

Hence ;

X ____ : 0 ______ 1.4 _____ 2 _____ 3

P(X) ___ 1/3 _____ 1/3 _____ 1/6 ____ 1/6

A) P(X = 1.6).B) P(0.5 < X < 2.7).C) P(X > 3).D) P(0 ≤ X < 2).E) P(X = 0 or X = 2).

A.)

P(X = 1.6) = 0

B.)

P(0.5 < X < 2.7) = p(x = 1.4) + p(x = 2)

P(0.5 < X < 2.7) = 1/3 + 1/6 = (2 + 1) / 6 = 3/6 = 1/2

C.)

P(X > 3) = 0

D.)

P(0 ≤ X < 2) = P(0) + P(1.4)

P(0) + P(1.4) = 1/3 + 1/3 = 2/3

E.)

P(X = 0 or X = 2) = 1/3 + 1/6 = (2 + 1)/6 = 3/6 = 1/2

Plastic Rods
A factory makes rods by cutting plastic pipes that are 5 feet long into 8 rods.
Part A
How long is each rod?
40
feet
You may use the scratchpad to show your work.
Enter your answer as a fraction or a mixed number.
Part B
What is the total length of 13 rods?

Answers

Answer

65 feet long

Step-by-step explanation:

15x5 is 65

Answer:

Step-by-step explanation:

5 feet ÷ 8 = 5/8 of a foot for each rod.

(In inches that would be 5/8 × 12 inches = (5 × 12)/8 inches = 60/8 inches = 15/2 inches = 7 1/2 inches.)

13 rods would be 13 × 5/8 feet = (13 × 5)/8 feet = 65/8 feet = 8 1/8 feet

A man is climbing up a ladder set against the wall of a house. As he climbs
to the top, the covers the distance of 4 feet horizontally and 10 feet
vertically. What is the ladder's angle of elevation? Determine the answer to
the thousandth degree . *

Answers

The Answer is 68.199

Can someone please help me

Answers

Answer:

So you must do tan(27)=x/2000Then once you have x you do: x^2+y^2=c^2 solve for c then add up all the sides and then subtract your total by 2000 to get the difference

Solve for <4.
4 = [?]
O
319
32°
64

Answers

Step-by-step explanation:

32+31+x=180

63+x=180

x=117

x= 117 4

This table models function m.

Answers

Answer:

A: The y-intercept of function m is less than that of function n.

Step-by-step explanation:

From the table, we see that when x = 0, m(x) = -6.

This means that the y-intercept of function m is -6.

For the function "n", we are told it passes through (-1, 0) and (0, 2)

We see that at the second coordinate, at x = 0, y = 2.

This means that the y-intercept of the n function is at 2.

Therefore,we conclude that the y-intercept of function m is less than that of function n.

(= 16
-1/4x = 16. Solving equations with rational coefficients

Answers

-1/4x=16

-1x =16x4

x =64/-1

x=-64

the length of the Boston Marathon is about 26 miles. A mile is equal to 1.609 kilometers. How many kilometers does a runner cover if he or she completes in the race

Answers

Answer:

41.834

Step-by-step explanation:

The complete length of the boston marathon is 26 miles

A mile is 1.609 kilometers

Therefore the number of kilometers a runner needs to run to complete the race can be calculated as follows

= 26 × 1.609

= 41.834

Hence the runner needs to run 41.834 kilometers

I need help with this question pls help:)

Answers

Answer:

This looks difficult and i DON'T UNDERSTAND

Step-by-step explanation:

Determine the median of
the following numbers:
13, 23, 10, 17, 21,8

Answers

Answer:

Step-by-step explanation:

1.) u add all the numbers

13+23+10+17+21+8=92

2.) u divied by the amount of nubers u have

92/6= 15 1/3

I give you brainless if you get it right

Answers

the answer is also 80

Which equation shows a correct relation for triangle RSQ?

Answers

Answer:

sinQ=cosR

Step-by-step explanation:

First we need to find out the measure of ∠R.

The sum of all the angles in a triangle add up to 180. Therefore:

∠Q+∠R+∠S=180

66+∠R+90=180

∠R=180-156

∠R=24°

Since ∠Q≠∠R, sinQ≠sinR. So the first option is incorrect - let's try the second one.

sinQ=cosR

sin66=cos24

0.9135454576=0.9135454576

So the second equation is the correct relation.

A packet has 54 sheets of paper. Suraj uses 4/9of the sheets. How many sheets has he used?​

Answers

Answer:

Step-by-step explanation:

54(4/9)

216/9

24 sheets

Answer:

Suraj used 24 sheets of paper

I know but please I need to pass report cards are coming soon ​

Answers

Answer:

D

Step-by-step explanation:

add all sides together and multiply like a regular square and then divide by 2

Answer choices:
F. 1/2
G. 2/5
H. 1/10
J. 3/5
Someone answer this question if you know the answer.

Answers

Answer: F. 1/2

Step-by-step explanation:

If you add all the bows together, you get 10. The question is asking the probability of just 1 bow. This means you have a 1/10 chance. If you simply that, you end up with 1/2.

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