Question

Given the set: `{5,3,6,-2,5,6,-1,x}`, for what x would the mean of the set be 0?

Answer 1

`x=-22`

Explanation:

By definition, the mean or average of a set of data is given by

`barx=1/nsum_(i=1)^nx_i`.

Application in this particular case yields :

`0=1/8(5+3+6-2+5+6-1+x)`

`therefore x=-22`