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Suppose that a study shows that an electric bike is driven 23,500 km/year on average and...

Suppose that a study shows that an electric bike is driven 23,500 km/year on average and has a standard deviation of 3900 km. Assume that the measurements’ distribution is approximately normal.

a) Calculate the 3rd quartile.

b) Solve for the probability that a randomly selected electric bike is driven between 10,000 and 20,000 km per year.

Math   Statistics-And-Probability   
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