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) through​ (c) to the right. a. Compute the expected number of arrivals per minute. b. Compute the standard deviation. c. What is the probability that there will be fewer than 2 arrivals in a given​ minute?

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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) through​ (c) to the right.

a. Compute the expected number of arrivals per minute.

b. Compute the standard deviation.

c. What is the probability that there will be fewer than 2 arrivals in a given​ minute?

TT
Arrivals
Frequency
21
1
41
2
42
3
35
4
23
5
18
6
11
7
6
8
3
Transcribed Image Text:TT Arrivals Frequency 21 1 41 2 42 3 35 4 23 5 18 6 11 7 6 8 3
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