2. The following table shows the weekly wages for 40 workers in a certain factory in k£.

Calculate: i) The Median, ii)The 2nd Decline, iii) The 8th Decline

Solution: Draw a cumulative frequency table as shown

Weekly Wages K£

40-49

50-59

60-69

70-79

80-89

90-99

No. of workers

4

6

8

10

8

4
CLASSES BOUNDARIES f cf
40-49
50-59
60-69
70-79
80-89
90-99