Mathematics, 27.05.2020 07:57 JANA279

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An online retailer claims the probability of their packages arriving on time is 0.95. Assume that
delivery times for packages are independent of one another. Suppose that there were 14 package
deliveries. Let X = the number of packages delivered on time.

1. Explain why X is a binomial random variable.

2. Use the binomial probability formula to find P(X = 12). Interpret this value in context.

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