Asample of n=8 scores has a mean of m=12. what is the value of ∑x for this sample

A sample of n=8 scores has a mean of m=12. What is the value of ∑x for this sample

We are given the mean of 8 scores is 12.

We are required to find the sum of these 8 observation's,

We know that:

We are given:

Hence, sum of 8 observation's,

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)