Question

James has 4 test scores of 82, 77, 75 and 84. What score does James need on the next test to

have an average of 80? State what x represents, state the equation, and then state the answer.

Answer 1

average = sum of observations/number

80=400/5

Therefore, the sum of the scores has to equal 400.

Explanation:

400-(82+77+75+84)=x

400-(318)=x

x=82

That is the minimum score needed.