Expected number of arrivals per minute

Reference no: EM1389489

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 following results:

Arrivals    Frequency
0                14
1                31
2                47
3                41
4                29
5                21
6                10
7                 5
8                 2

a. Compute the expected number of arrivals per minute.

b. Compute the standard deviation.

Reference no: EM1389489

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