Explanation
(a)



Age in years
No of people
Cum Freq


10
8
8


15
19
27


20
10
37


25
7
44


30
6
50



(b)
(c)(i) Median age = 14.5 years
(ii) Number of people who are at most 15 years of age = 27 people
(iii) Number of people who are between 20 and 25 years = people who are 25 years - people who are 20 years
= 44 - 37 = 7 people

