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The manager of large computer network has developed following probability distribution of number of interruptions for each day.

Interruptions (X)	P (X)
0	0.32
1	0.35
2	0.18
3	0.08
4	0.04
5	0.02
6	0.01
Total	1

a. Evaluate the expected number of interruptions per day

b. Evaluate the standard deviation.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M918394

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