The following frequency distribution indicates the annual salaries of a 200 managers of a multinational corporation

Annual salary ($000) Number of Managers

15 but less than 25 24

25 but less than 35 74

35 but less than 45 52

45 but less than 55 38

55 but less than 65 12

A. Compute the mean salary of these managers (3marks)

B. Determine the median value of these managers(3 marks)

C. Compute the standard deviation and explain the meaning of this value (6 marks)

D. How skewed is the distribution? Explain (2 marks)

E. Construct an ogive curve and use this curve to answer item I through iii.

i. How many managers received less than $32000 (2marks)

ii. How many managers earn more than $50000 (2marks)

iii. Determine the third quartile, i.e percentile salary of managers (2marks)

please solve this as soon as possible and show all working outs