

Question

The table below shows the weekly profit in naira from a mini-market.



Weekly profit (N)
1-10
11-20
21-30
31-40
41-50
51-60


Freq
6
6
12
11
10
5



(a) Draw the cumulative frequency curve of the data;
(b) From your graph, estimate the : (i) median ; (ii) 80th percentile
(c) What is the modal weekly profit?



The table below shows the weekly profit in naira from a mini-market.



Weekly profit (N)
1-10
11-20
21-30
31-40
41-50
51-60


Freq
6
6
12
11
10
5


