QZ 17.3. Speeding on the M6. The distribution of passenger vehicle speeds travelling on the ME near Lancaster is considered to be normally distributed with a mean of 58.2 milesfhaur and a standard deviation of 5.4 milesfhour. (a) What percentage of passenger vehicles travel slawer than 30 milesfhnur? (I!) What percentage of passenger vehicles travel between 6-0 and BD milesfheur? (c) How fast do the fastest 10% of passenger vehicles at least travel? (d) The speed limit on this stretch of the M6 is 71} milesfhour. What percentage of the passenger vehicles travel above the speed limit on this stretch of the M6. [1] [1] [1] [1]