Fuel economy estimates for automobiles built in a certain year predicted a mean of 26.8 mpg and a standard deviation of 6.2 mpg for highway driving. Assume that a normal distribution can be applied. Within what range are 68% of the automobiles? The range for 68% of the automobiles is to mpg.
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Fuel economy estimates for automobiles built one year predicted a mean of 26.8 mpg and a standard deviation of 5.2 mpg for highway driving. Assume that a Normal model can be applied. Use the 68 – 95 – 99.7 Rule to complete the following. About what percent of autos should get more than 32 mpg? Fuel economy estimates for automobiles built one year predicted a mean of 26.8 mpg and a standard deviation of 5.2 mpg for highway driving. Assume that a Normal model can be applied. Use the 68 – 95 – 99.7 Rule to complete the following. About what percent of autos should get between 32 and 37.2 mpg? Fuel economy estimates for automobiles built one year predicted a mean of 26.8 mpg and a standard deviation of 5.2 mpg for highway driving. Assume that a Normal model can be applied. Use the 68 – 95 – 99.7 Rule to complete the following. Describe the gas mileage of the best 2.5% of cars.
Sri K.
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