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Determine the percentage of gasoline stations

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At one point the average price of regular unleaded gasoline was ?$3.66 per gallon. Assume that the standard deviation price per gallon is ?$0.06 per gallon and use? Chebyshev's inequality to answer the following.

?(a) What percentage of gasoline stations had prices within 2 standard deviations of the? mean?

?(b) What percentage of gasoline stations had prices within 1.5 standard deviations of the? mean? What are the gasoline prices that are within 1.5 standard deviations of the? mean?

?(c) What is the minimum percentage of gasoline stations that had prices between ?$3.48 and ?$3.84??

?(a) At least ____ % of gasoline stations had prices within 2 standard deviations of the mean.

?(Round to two decimal places as? needed.)

?(b) At least ____?% of gasoline stations had prices within 1.5 standard deviations of the mean.

?(Round to two decimal places as? needed.)

The gasoline prices that are within 1.5 standard deviations of the mean are ?$______ to $ ______.

(c) _____ ?% is the minimum percentage of gasoline stations that had prices between $3.48 and ?$3.84.

?(Round to two decimal places as? needed.)

Reference no: EM132846691

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