A small business has 14 part-time employees where the annual salaries received are given below (in Rand).

16 000

15 000

60 000

17 000

16 000

55 000

18 500

17 000

14 500

15 000

17 000

16 000

15 000

15 000

2.2.1 Calculate the mean salary. (2)

2.2.2 Find the median and the modal salary. (3)

2.2.3 Calculate the range of the above data. (2)

2

2.2.4 Repeat 2.2.1 and 2.2.2 on the basis of the data expressed in a frequency distribution format. Verify that you obtained the same answer as when you used the data in raw form. (5)