Question

If the formula X= is used to find the mean of the following sample,

what is the value of n?
2, 63, 88, 10, 72, 99, 38
OA. 5
B. 7
O C. 8
D. 6

Answer 1

B

Explanation:

given the formula for calculating the mean of a data set

where n is the number ( count ) of pieces of data

given the data set

2 , 63 , 88 , 10 , 72 , 99 , 38

There are 7 values in the data set , then n = 7