The histogram gives information about a fitness club.
Frequency
density
All members are below 80 years old.
25 members are below 20 years old.
9 members are above 65 years old.
a) Complete the histogram.
b) Work out the total number
of members of the club.
members
10 20
Members of a fitness club
30 40 50 60
Age in years
70
80