Final answer:
The actuarially fair premium for the group with a family history of cancer and the group without history of cancer can be calculated. If the insurance company charges the actuarially fair premium to the group as a whole, it may face financial instability.
Step-by-step explanation:
The actuarially fair premium for each group can be calculated by multiplying the probability of dying in the next year by the payout amount and then summing the results for each group.
For the group with a family history of cancer, 20% of 1,000 men have a one in 50 chance of dying in the next year, so the value is:
0.2 * 1000 * (1/50) * 100,000 = $4,000
For the group without a family history of cancer, 80% of 1,000 men have a one in 200 chance of dying in the next year, so the value is:
0.8 * 1000 * (1/200) * 100,000 = $4,000
If the insurance company cannot find out about family cancer histories and wants to offer life insurance to the entire group, the actuarially fair premium for the group as a whole would be:
1,000 * (1/125) * 100,000 = $8,000
If the insurance company tries to charge the actuarially fair premium to the group as a whole rather than to each group separately, it may face financial instability as the premium may not be enough to cover the potential payouts for the higher risk group.