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assume that when adults with smart phones are randomly selected, 52% use them in meetings or...

assume that when adults with smart phones are randomly selected, 52% use them in meetings or classes. if 30 adult smart phone users are randomly selected, find the probability that exactly 19 of them use their smart phones in meetings or classes

Math   Statistics-And-Probability   
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Here, Success (X) is Number of adults use smartphone in meeting or classes.

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