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2 years ago

14

A librarian recorded the number of books that were checked out on each of the last 9 days,as shown below. 142, 136, 125, 148, 15

0, 152, 115, 131, 136 What is the mean of the data set? a 137.22 b 1, 235 c None of these d 9

2 answers:

nika2105 [10]2 years ago

8 0

The answer is A. 137.22

lutik1710 [3]2 years ago

4 0

Mean is the sum of values divided by the count of values.

The sum of values is 1,235.

There are 9 values.

1235/9 = 137.22

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