Question: Approximate the mean of the grouped data. Round to the nearest whole number. Phonecalls(perday) Frequency 8-11 12 12-15 49 16-19 22 20-23 26 24-27 47

Approximate the mean of the grouped data. Round to the nearest whole number.

Phonecalls(perday)

Frequency

8-11

12

12-15

49

16-19

22

20-23

26

24-27

47

...

Question content area right

Part 1

A.31

31

B.18

18

C.17

17

D.20

20

E.19

19

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