Question

yo can someone just help me plz im bad at math

Answer 1

Below are the data collected from two random samples of 500 American students on the number of hours they spend in school per day (rounded to the nearest hour):

Number of hours in school per day 4 5 6 7 8
Sample A: Number of students 70 100 125 135 70
Sample B: Number of students 80 90 120 125 85

Meg concludes that students spend a mean of 7 hours in school each day. Tara thinks the mean is 6 hours. Who is correct—Meg or Tara? Explain your answer in two or three sentences. Make sure to use facts to support your answer.

Answer 2

just find the mean......whatever ur answer is if its correct should match one of them

Answer 3

im the worst at math but wht shawnte said 😄

Answer 4

whats a the mean

Answer 5

idk how to find it

Answer 6

Mean is the sum of the data values divided by the number of data values in the set

Answer 7

plz dumm it down

Answer 8

So the data values are "4 5 6 7 8"

You have to add them.

4+5+6+7+8=?

Whatever your sum is, you would have to divide it by 5.

5 is the number of data values(Number of hours in school per day) *

Answer 9

Do you understand now-?

Answer 10

kinda thx

Answer 11

Lemme help you with the rest of the problem then.

Find the sum of that v add all those numbers, what do you get?

4 + 5 + 6 + 7 + 8 =

Answer 12

30

Answer 13

Yes, 4 + 5 + 6 + 7 + 8 = 30

Now, as I have said, you have to divide the sum by the number of data values.

There are 5 data values.

What is \[30 \div 5 = ?\]

Answer 14

6

Answer 15

Correct!

So:

Meg concludes that students spend a mean of 7 hours in school each day.

Tara thinks the mean is 6 hours.

Based on what we have done so far, which girl is right abt the mean?

Answer 16

tara

Answer 17

Yes!

Tara is Correct.

So what we have learned is that:

Mean = the sum of the data values divided by the number of data values in the set

Answer 18

XD

Now you know what a mean is!

Answer 19

yesh