Bicycling World, a magazine devoted to cycling, reviews hundreds of bicycles throughout the year. Its Road-Race category contains reviews of bicycles used by riders primarily interested in racing. One of the most important factors in selecting a bicycle for racing is its weight. The following data show the weight (pounds) for 100 racing bicycles reviewed by the magazine:

a) Calculate standard deviation and variance for the given weights in above table.

b) Calculate the z-score for weights 412

c) show box plot for consultation hours of the teachers. Which of the values, if any, are outliers?

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