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?