Question

A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to be $28.41, with a standard deviation of $3.09. Based on this information, complete the following statements about the distribution of the company's fares from O'Hare Airport to the Drake Hotel.

(a) According to Chebyshev's theorem, at least ________ (56% 75% 84% or 89%) of the fares lie between 22.23 dollars and 34.59.

(b) According to Chebyshev's theorem, at least _________ (56% 75% 84% or 89%) of the fares lie between 23.775 dollars and 33.045.

(c) Suppose that the distribution is bell-shaped. According to the empirical rule, approximately ________ (68% 75% 95% or 99.7%) of the fares lie between 22.23 dollars and 34.59.

(d) Suppose that the distribution is bell-shaped. According to the empirical rule, approximately 99.7% of the fares lie between ______ dollars and ______dollars.

Answer 1

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