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Mathematics, 18.03.2020 02:58 Hayes0515
In a survey, 70% of Americans said they own an answering machine. If 5 Americans are selected at random:
a. Find the probability that exactly 3 own an answering machine;
b. Find the mean number of people who own an answering machine.;
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Answers: 3
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In a survey, 70% of Americans said they own an answering machine. If 5 Americans are selected at ran...
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