Problem:
The number of people living in a hypothetical large Canadian city is reported by age groups in the following table.
a. Verify the percentages reported in the table, and convert them into proportions.
If one person is picked at random from all the people represented in the table, what is the probability of the following events?
b. The person is between 18 and 24 years old.
c. The person is older than 17.
d. The person is between 18 and 24 or older than 17.
e. The person is at least 25.
f. The person is not older than 24.