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At one point the average price of regular unleaded gasoline was ​$3.443.44 per gallon. Assume that...

At one point the average price of regular unleaded gasoline was

​$3.443.44

per gallon. Assume that the standard deviation price per gallon is

​$0.04

per gallon and use​ Chebyshev's inequality to answer the following.

​(a) What percentage of gasoline stations had prices within

4 standard deviations of the​ mean?

​(b) What percentage of gasoline stations had prices within

2.5 What are the gasoline prices that are within

2.5 standard deviations of the​ mean?

​(c) What is the minimum percentage of gasoline stations that had prices between

​$3.32 and ​$3.56

Math   Statistics-And-Probability   
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