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If 20 percent of people who enter store buy something and 3 people enter what is the probability of at least one sale?
Wiki User
∙ 14y ago
The probability of at least one event occurring out of several events is equal to one minus the probability of none of the events occurring. This is a binomial probability problem. Go to any binomial probability table with p=0.2, n=3 and the probability of 0 is 0.512. Therefore, 1-0.512 is 0.488 which is the probability of at least 1 sale.
Wiki User
∙ 14y ago
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20 percent of people who enter store buy something what is the probability of at least one sale?
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