Please use excel. Suppose that the following data is the total annual incomes (rounded to thousands) for all 30staffs in the Department of Mathematics of a university for the year 2014.StaffAnnual Income(RM '000)StaffAnnual Income(RM '000)15116432701716379181547519727220926.55212572522308382324742446105425471137264612152745135628381417298115773049Construct a grouped frequency distribution for the data using 5 classes.Calculate the relativefrequency and percentage for all classes. Clue: The 5 classes are 15-30,31-46,47-62,63-78,79-941. Find the measurement of central tendency for this grouped of total annual incomes for all30 staffs?а. Мean?b. Median?с. Mode?

Answered: Suppose that the following data is the…

Intermediate Algebra

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Suppose that the following data is the total annual incomes (rounded to thousands) for all 30 staffs in the Department of Mathematics of a university for the year 2014. Staff Annual Income(RM '000) Staff Annual Income(RM '000) 1 51 16 43 2 70 17 16 3 79 18 15 4 75 19 72 5 72 20 92