The table shows the age distributions of the members of a club.
Age (years)
10-14
15-19
20-24
25-29
30-34
35-39
Frequency
7
18
25
17
9
4
(a) Calculate, correct to one decimal place, the mean age. (b) (i) Draw a histogram to illustrate the information. (ii) Use the histogram to estimate the modal age . (c) If a member is selected at random, what is the probability that he/she is in the modal class?
