The number of arrivals per minute at a bank located in the central

The number of arrivals per minute at a bank located in the central business district of a large city was recorded over a period of 200 minutes, with the results shown in the table below. Complete (a) and (b) to the right.

 

Arrivals

Frequency

0

19

1

45

2

41

3

36

4

23

5

18

6

10

7

5

8

3

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