Question

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 1

Tara is correct because you have to add 4+5+6+7+8 to get 30 and then divide it by how many numbers there are and that is 5 so you get 6. Hope hit helps!!

Answer 2

Answer:

Tara is correct.

Step-by-step explanation:

The mean is the average of the numbers.

Number of hours      Sample A      Sample B

4                                   70                         80        

5                                  100                       90

6                                  125                       120

7                                  135                       125

8                                70                          85

The mean number of hours is :

$\frac{4+5+6+7+8}{5} =\frac{30}{5}=6$

Tara is correct as the mean is the average of the given data(hours).