Jaguar Paints delivers paint orders to their largest contractors. The average nu

Question

Jaguar Paints delivers paint orders to their largest contractors. The average number of gallons per delivery is 42.4 gallons. The standard deviation is 9.1 gallons. Which of the following is TRUE about this standard deviation?

A. The average difference between the delivery amounts and the mean is 9.1 gallons.
B. Most deliveries will be between 9.1 and 42.4 gallons.
C. Approximately 95% of the deliveries contain between 24.2 and 60.6 gallons.
D. The next delivery will most likely be 9.1 gallons more than 42.4 gallons.

Explanation / Answer

If we assume that the average number of gallons per delivery follows normal distribution. Hence it is true that approximately 95% of the deliveries contain between 24.2 and 60.6 gallons.

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