The probability that a randomly selected teenager watched a rented video at least once during a week was 0.74. What is the probability that at least 3 teenagers in a group of 5 watched a rented movie at least once last week? (Round your answer to four decimal places.) P(X > 3) = 0.9011

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A: Solution

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A: Solution: The given table of data is

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Q: The probability that a randomly selected teenager watched a rented video at least once during a week…

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A:

Q: The probability that a randomly selected teenager watched a rented video at least once during a week…

A:

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Q: The probability that a randomly selected teenager watched a rented video at least once during a week…

A: The probability that a randomly selected teenager watched a rented video at least once during a week…

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A: Given,n=400x=126p^=xn=126400=0.3151-p^=1-0.315=0.685α=1-0.95=0.05α2=0.025Z0.025=1.96

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.