Answer:
61.70% probability that he or she will be between 23 and 52 years of age
Explanation:
An uniform probability is a case of probability in which each outcome is equally as likely.
For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.
The probability that we find a value X between c and d is given by the following formula.

The numbers of full-time wage and salary workers in each age category are almost uniformly distributed by age, with ages ranging from 18 to 65 years.
This means that
. So
(a) what is the probability that he or she will be between 23 and 52 years of age?

61.70% probability that he or she will be between 23 and 52 years of age