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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 70 17 16 3 79 18 15 4 75 19 72 72 20 92 6 55 21 25 25 22 30 8 38 23 24 9 74 24 46 10 54 25 47 11 37 26 46 12 15 27 45 13 56 28 38 14 17 29 81 15 77 30 49 Construct a grouped frequency distribution for the data using 5 classes.Calculate the relative frequency and percentage for all classes. Clue: The 5 classes are 15-30,31-46,47-62,63-78,79-94 f) Find the measurement of variation for this grouped of total annual incomes for all 30 staffs? a. Variance? b. Standard deviation? c. Range?

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 70 17 16 3 79 18 15 4 75 19 72 72 20 92 6 55 21 25 25 22 30 8 38 23 24 9 74 24 46 10 54 25 47 11 37 26 46 12 15 27 45 13 56 28 38 14 17 29 81 15 77 30 49 Construct a grouped frequency distribution for the data using 5 classes.Calculate the relative frequency and percentage for all classes. Clue: The 5 classes are 15-30,31-46,47-62,63-78,79-94 f) Find the measurement of variation for this grouped of total annual incomes for all 30 staffs? a. Variance? b. Standard deviation? c. Range?

College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.6: Rational Functions
Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.
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Please use excel.
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 72 20 92 6. 55 21 25 7 25 22 30 8 38 23 24 9 74 24 46 10 54 25 47 11 37 26 46 12 15 27 45 13 56 28 38 14 17 29 81 15 77 30 49 Construct a grouped frequency distribution for the data using 5 classes.Calculate the relative frequency and percentage for all classes. Clue: The 5 classes are 15-30,31-46,47-62,63-78,79-94 f) Find the measurement of variation for this grouped of total annual incomes for all 30 staffs? a. Variance? b. Standard deviation? c. Range?
Transcribed Image Text: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 72 20 92 6. 55 21 25 7 25 22 30 8 38 23 24 9 74 24 46 10 54 25 47 11 37 26 46 12 15 27 45 13 56 28 38 14 17 29 81 15 77 30 49 Construct a grouped frequency distribution for the data using 5 classes.Calculate the relative frequency and percentage for all classes. Clue: The 5 classes are 15-30,31-46,47-62,63-78,79-94 f) Find the measurement of variation for this grouped of total annual incomes for all 30 staffs? a. Variance? b. Standard deviation? c. Range?
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