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1- (i)- The table below shows the distribution of salaries of employees in Dun ford and Sons. SALARY RANGE & NO. OF EMPLOYEES Salary range 5,000-9,999 10,000-14,999 15,000-19,999 20,000-24,999 25,000-29,999 30,000-34,999 35,000+ No. of Employees 56 134 292 149 127 38 25 a) Make the necessary calculations and draw a cumulative frequency. b) Calculate the number of managers, given that senior managers’ salaries are £30,000 and above, and middle managers’ salaries are greater than £20,000. c) Calculate the ratio of senior managers to middle managers. d) Calculate the percentage of the workforce which are not senior or middle managers (i.e. other employees).
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