Find the probability that at least one donation will be

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Suppose that a telephone solicitor for a particular charity makes 10 random calls. She estimates that there is 20% chance that a given call will result in donation. Let X denotes the number of donations obtained.

(a) Find the mean and standard deviation of X.

(b) Find the probability that at least one donation will be obtained.

(c) Find the probability that between one and three donations inclusive will be obtained.

Reference no: EM13621455

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