Answer:
77.14
Explanation:
To find the mean(average) we add all the values and divide the sum by the number of values. Here, we are given 7 total values.
The sum of these values = 79 + 83 + 54 + 77 + 98 + 61 + 88 = 540
Because there are 7 total values we divide the sum by 7 to get the mean
So mean = 540 / 7 = 77.14 (rounded to two decimal places)