b) The variation of incomes of executives is to be compared with the variation of incomes of unskilled employees. For a sample of executives, mean = Ksh 500,000 and Standard deviation = Ksh 50,000. For a sample of unskilled employees, the mean = Ksh 12,000 and standard deviation = Ksh 2000. Is the variation among the executives greater than the variation among the unskilled employees? Justify you answer.
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