Question

Given the set: `{1,-11,-4,5,x,-16}`, for what x would the mean of the set be -2?

Answer 1

`13`

Explanation:

`barx=(Sigma x)/n`

`-2=(1+ -11+ -4 +5+x+ -16)/6`

`=>-12=-25+x`

`:.x=25-12`

`x=13`