Using the probability concept, it is found that there is a 0.8456= 84.56% probability that client A lives to be 20 years old.
A probability is the chances of happening of any event from the random variables. A probability is the number of desired outcomes divided by the number of total outcomes, that is:
[tex]P=\dfrac{D}{T}[/tex]
In this problem:
Out of 100,000 clients, 84,560 lives to age 64, hence
Then:
[tex]P=\dfrac{84560}{100000}=84.56\%[/tex]
There is a 0.8456= 84.56% probability that client A lives to be 30 years old.
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