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The probability that a salesperson will sell a magazine subscription to someone who has been randomly selected from the telephone directory is 20%. If the
The probability that a salesperson will sell a magazine subscription to someone who has been randomly selected from the telephone directory is 20%. If the salesperson calls 10 individuals this evening, what is the probability that
a) No subscription will be sold?
b) Exactly two subscriptions will be sold?
c) At least one subscription will be sold?
d) At most three subscriptions will be sold?
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