The number of cars running a red light in a day, at a given intersection, possesses a distribution with a mean of 3 cars and a standard deviation of 1 car. The number of cars running the red light was observed on 100 randomly chosen days. The middle 50% of the sample mean or average number of cars are between what two values? Round to two decimal places.     2.33 cars and 3.67 cars     2.99 cars and 3.01 cars     2.93 cars and 3.07 cars     2.93 cars and 3.67 cars

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