Question

A list of 9 numbers has a mean of 4.6 what number must be added to the list to make the mean 5 ?​

Answer 1

8.56

Explanation:

X/9 = 4.6

4.6 * 9 = 41.44

The addition of 10 numbers is 5O/10 = 5

50 - 41.44 = 8.56