Textbook ExpertVerified Tutor
16 Nov 2021
Given information
The time (in years) after reaching age that it takes an individual to retire is approximately exponentially distributed with a mean of about five years. Suppose we randomly pick one retired individual. We are interested in the time after age to retirement.
Step-by-step explanation
Step 1.
First the probability of people being more than years of age is calculated as follows:
Then, the expected number of people who will NOT have retired yet is calculated as follows:
The number of people expected NOT to have retired yet is given as follows:
Therefore, the number of people expected NOT to have retired yet are .
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