Question

What is the mean of the set of number? -7, -5, 0, 8, 9 A. 1 B. 10 C. 22 D.5

Answer 1

Add up all the numbers
(-7 + -5) + (8 +9)

Then divide by 5, the total number of items in the data set.

Answer 2

I think it is d=5 because when you add them all up and divide by 5 it is 5