Question

Each week your science teacher gives a fifteen-point quiz. Your current scores are shown in the table. What is your mean quiz score?

15 11 10 11 14 10 15 10 12

Answer 1

The mean should be 12.

Explanation:

To find the mean of a range of numbers, you must simply add all of the numbers together and divide by how many numbers there are in the group.

In this case, I did 15+11+10+11+14+10+15+10+12, which came to be 108. I divided that by 9, since there are nine numbers, which gave me 12.

Hopefully this helps!

Answer 2

12

mean is adding all the terms and dividing by number of terms so once you add them all you be 108 and then divide by 9 giving you the mean, 12