# Question

All the workers at a certain company drive to work and park in the company’s lot. The company is interested in estimating the average number of workers in a car. Which of the following methods will enable the company to estimate this quantity? Explain your answer.

a. Randomly choose n workers, find out how many were in the cars in which they were driven, and take the average of the n values.

b. Randomly choose n cars in the lot, find out how many were driven in those cars, and take the average of the n values.

a. Randomly choose n workers, find out how many were in the cars in which they were driven, and take the average of the n values.

b. Randomly choose n cars in the lot, find out how many were driven in those cars, and take the average of the n values.

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