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Four friends Janice Barbara kaitlyn and Roberta decide to carpool to school. Each day the driver would be chosen by randomly selecting one of the

Four friends Janice Barbara kaitlyn and Roberta decide to carpool to school. Each day the driver would be chosen by randomly selecting one of the four names they carpool to school for 96 days use the normal approximation to the binomial to calculate the following probability

find the probability that Janice is the driver for at most 20 days

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