Use the following information to answer the question. Suppose that the probability that a person books an airline ticket using an online travel website is 0.72. For the questions that follow, consider a sample of ten randomly selected people who recently booked an airline ticket.
-What is the probability that exactly seven out of ten people used an online travel website when they booked their airline ticket? Round to the nearest thousandth.
A)0.480
B)0.998
C)0.035
D)0.264

Question

Quizplus · Accepted Answer

The probability of exactly seven people using the website can be calculated using the binomial probability formula: P(X=k) = C(n, k) * p^k * (1-p)^(n-k). Here, n=10, k=7, p=0.72. The calculation gives approximately 0.264.

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