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Individual gas mileages (in miles per gallon)of Model ExtraSS (Extra Super-Sporty) sedans are normally distributed with a population mean of 20 and a population standard

Individual gas mileages (in miles per gallon)of Model ExtraSS (Extra Super-Sporty) sedans are normally distributed with a population mean of 20 and a population standard deviation of 2. Based on these information, if you bought aModel Extra SS sedan, what is the probability that the gas mileage (in miles per gallon) of your single, individual sedan is between 19.5 and 20.5?

a.0.0987

b.0.4013

c.0.1974

d.Not enough information given to answer this question

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