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 parts a and b to the right.

Arrivals Frequency

0 14

1 26

2 48

3 40

4 29

5 22

6 11

7 7

8 3

a. Compute the mean number of arrivals per minute.