Problem 1:
An analyst estimates that the probability of default on a seven-year AA-rated bond is 0.06, while that on a seven-year A-rated bond is 0.13. The probability that they will both default is 0.04.
Problem 2:
Organizers of an outdoor summer concert are concerned about the whether conditions on the day of the concert. They will make a profit of $25,000 on a clear day and $10,000 on a cloudy day. They will take a loss of $5,000 if it rains. The weather channel has predicted a 60% chance of rain on the day of the concert. Calculate the expected profit from the concert if the likelihood is 10% that it will be sunny and 30% that it will be cloudy.
Problem 3:
The average rent in a city is $1,500 per month with a standard deviation of $250. Assume rent follows the normal distribution. What percentage of rents are between $1,250 and $1,750?
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