I will medal and fan best answer!! I need explanation AND answer!!!!!!

A group of
7
students was asked, "How many hours did you watch television last week?" Here are their responses.
12, 8, 20, 9, 9, 15, 8
Find the mean number of hours for these students.
If necessary, round your answer to the nearest tenth.

Question

I will medal and fan best answer!! I need explanation AND answer!!!!!!



A group of 
7
 students was asked, "How many hours did you watch television last week?" Here are their responses.
12, 8, 20, 9, 9, 15, 8
Find the mean number of hours for these students. 
If necessary, round your answer to the nearest tenth.

anonymous · Answer

add these numbers: 12, 8, 20, 9, 9, 15, 8 and divide that by 7

anonymous · Answer

which would be about 11.6

anonymous · Answer

mean is adding the numbers and dividing by total numbers