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4. Assuming that naptimes for kids in a preschool are uniformly distributed between 30 minutes and 180 minutes per day, nd the probability that a randomly chosen kid has a naptime between 45 minutes and 75 minutes. 5. Assuming that workers' salaries in your company are uuit'onnly distributed between 825,000 and $65,000 per year, calculate the average salary in your company. 6. A group of nancial loan institutions are failing at a rate of 5% per year. (a) What is the probability an institution will last between 5 and 8 years (rounded to 5 decimal places)? (b) How long will it take on average for an institution to fail (nearest year)