What is the mean of the numbers 21, 23, 76, 47, 55, 135, 45, 30, 17?

1 Answer
Jul 7, 2016

50 (2sf)

Explanation:

When calculating the mean simply add all of the values together then divide by the number of values a general formula could be:

barx = (sumx)/n

Where x is the values in the list and n is the number of values.

barx = (21 + 23 +76 + 47 +55 +135 + 45+ 30+17)/9
barx = 50(2sf)