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Find the mean and standard deviation of the number of cars

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Reference no: EM13580381

Question 1: Find the mean and standard deviation of the number of cars that have more than 1 passenger among
the 500 cars stopped at a cordon-point for a survey. Assume that 5% of all cars have multiple passengers (compared to driver-only cars).

Question 2: The mean age for men to purchase their first home is 38 years. If the standard deviation is assumed to be 3.2 years, find the probability that a random sample of 40 men would show a mean age less than or equal to 37 years.

Reference no: EM13580381

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