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Sagot :
In order to calculate the expected value of one policy, we can use the formula below:
[tex]E(x)=\sum x\cdot p(x)[/tex]When the holder of the policy dies before 70 years old (probability of 3%), the company will earn $765 but will lose $27400. If the holder dies after 70 years old, the company will earn $765.
So the expected value is:
[tex]\begin{gathered} E(x)=0.03\cdot(765-27400)+0.97\cdot765\\ \\ E(x)=0.03\cdot(-26635)+742.05\\ \\ E(x)=-799.05+742.05\\ \\ E(x)=-57 \end{gathered}[/tex]Since the expected value is negative, that means the company should expect to have a loss of $57 for each insurance policy sold.
Therefore the correct option is the second one, and the expected loss is $57 per policy.
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