Question

Ariana wants to know the mean of her test scores, which are listed below. 90,79,87,77,87,72 Find the mean test score.

Answer 1

Explanation:

To find mean we use the formula

(sum of all the values)/(total number of values)

sum of all values=90+79+87+77+87+72

=492

total number of values=6

mean=492/6

=82

so mean test score is 82