# Question

If the probability is 0.75 that a person will believe a rumor about the transgressions of a certain politician, find the probabilities that

(a) The eighth person to hear the rumor will be the fifth to believe it;

(b) The fifteenth person to hear the rumor will be the tenth to believe it.

(a) The eighth person to hear the rumor will be the fifth to believe it;

(b) The fifteenth person to hear the rumor will be the tenth to believe it.

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