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A bank recorded the number of atm transactions made by its

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Reference no: EM13576754

Question: A bank recorded the number of ATM transactions made by its customers in one day. The number x of daily ATM transactions per customer can be approximated by the following probability distribution.

x   P(x)
0   .22
1   .28
2   .20
3   .12
4   .09
5   .07
6   .02

Find:

(i) P(X≤4)

(ii) P(2 < X ≤ 5)

(iii) Find the mean of X

(iv) Find the standard deviation of X.

Reference no: EM13576754

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