Ten values have a mean of 75.0. Nine of the values are 90, 78, 87, 62, 92, 56, 70, 70, 93.?

Question

1. Find the tenth value.
2. We need to create a list of n values that have a specific known mean. We are free to select any values we desire for some of the n values. How many of the n values can be freely assigned before the remaining values are determined?

Answer 1

The sum of the nine values is 698
10th value = 750 - 698
10 th value = 52

n-1 values can be freely assigned before the remaining values are determined.

Answer 2

1.The total of 10 values is 750
Add the other 9 =698
Difference is 10th value = 52

2. n-1