Speeding on the I-5. Suppose the distribution of passengervehicle speeds traveling on the Interstate 5 Freeway (I-5) inCalifornia is nearly normal with a mean of 73 miles/hour and astandard deviation of 4.65 miles/hour. Round all answers to fourdecimal places. What proportion of passenger vehicles travel slowerthan 72 miles/hour? What proportion of passenger vehicles travelbetween 66 and 73 miles/hour? How fast do the fastest 6% ofpassenger vehicles travel? miles/hour Suppose the speed limit onthis stretch of the I-5 is 70 miles/hour. Approximately whatproportion of the passenger vehicles travel above the speed limiton this stretch of the I-5?
