What is the mean of - 9,-5,-4,-4,-2,0,1,2,3,5

Answer: - 1.3

Step-by-step explanation: I believe that it's - 1.3 if you're referring to the arithmetic mean.

(1) Take the sum of - 9, - 5, - 4, - 4, - 2, 0, 1, 2, 3, 5 and simplify it to - 13

(2) Count the number of terms in the data set.

{-9, - 5, - 4, - 4, - 2, 0, 1, 2, 3, 5}

{1, 2, 3, 4, 5, 6, 7, 8, 9, 10} - The number of terms in the data set is 10.

(3) Divide the sum by the number of terms and simplify.

-13 / 10 = - 1.3 (simplified)