Question: 4.4 For the first eight companies in our data set data_growth.xlsx, calculate by hand the range, the standard deviation, the variance, the interquartile range, and

4.4 For the first eight companies in our data set data_growth.xlsx, calculate by hand the range, the standard deviation, the variance, the interquartile range, and the coefficient of variation for the variable marketing and interpret the result.

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