Question

5. Let us apply the formula to some numbers. The following are the durations in minutes of a series of telephone calls. You want to know the mean duration of the calls.
µ ═ ∑ X
n

Duration of calls: 12.3, 18.2, 33.1, 9.1, 7.3, 10.4, 11.5, 4.5, 8.9, 3.3

Answer 1

Answer: The mean is 11.86

Step-by-step explanation:

Add all the numbers and divide by however many numbers there are. In this case there are 10 numbers