Question: The idea of insurance is that we all face risks that are unlikely but carry cost. Think of a fire destroying your home. So we form a group to share risk: we all pay a small amount, and the insurance policy pays a large amount to those few of us whose homes burn down. An insurance company looks the records for millions of homeowners and sees that the mean loss from in a year is \(\mu \) = $250 per house and that the standard deviation is= $1000. (The distribution of losses is extremely right-skewed: most people have $0 loss, but a few have large losses.) The company plans to sell fire insurance for $250 plus enough to cover its costs and profit.

1. Explain clearly why it would be unwise to sell only 12 policies. Then explain why selling many thousands of such policies is a safe business
2. If the company sells 10,000 policies, what is the approximate probability that the average loss in a year will be greater than $275?

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