Question

What is the mean of the set of numbers?



{–8, –4, –3, –11}



A.
–6.5


B.
–4.5


C.
4.5


D.
6.5

Answer 1

The (arithmetic) mean of a set of numbers is the sum of all those numbers, divided by the number of numbers.

Answer 2

add them all up, then divide by how many numbers there are

Answer 3

Go to wolframalpha.com

Answer 4

so the mean of \(2,4,6\) is \[\frac{2+4+6}{3} = 4\]