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← Unit 12 · Binomial distribution

Practice

Mixed order. Wrong answers show the rule, the worked steps, the trap, and a twin to try.

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2.8 · #11 of 12

If 8 adults smartphone users are randomly selected, find the probability that exactly 6 of them use their smartphones in meetings or classes.

For problems 1 - 4: Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes.

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