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G12 MDM4U Exam 3. (K/U: 8 marks and T: 8 marks) The following table of data represents the distribution of salaries (in thousands of dollars) in a small company Salary ($1000) 20 22 25 32 35 42 45 50 65 85 No. of employees1 48 10 6 5 2 21T (a) Convert the data into grouped data using five intervals. Show the frequency with the midpoint of each interval. (b) Draw the relative frequency histogram based on the grouped data in (a). (c) Determine the mean, median, mode, interquartile range and the standard deviation based on the grouped data in (a). (d) If contract negotiations were about to begin what measure would you expect the labour to quote and which measure would you expect the management to quote? Explain.
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