2.22 According to CleanTechnica website, Sweden’s full electric vehicles took a record high 24.1%

share of new sales, with the Kia e-Niro being Sweden’s best-selling full electric vehicle. Suppose you are an employee at a Kia showroom in Sweden. Your manager asks for an overview of the range that the electric cars can cover on a single battery. A random sample of 54 cars is used. The range each car can drive is contained in the data file Electric Cars.

a. Find the range, variance, and standard deviation of the range.

b. Find and interpret the interquartile range for the driving range.

c. Find the value of the coefficient of variation.