The Bathurst 1000 motor race has a lap record of 2 minutes and 12.339 seconds. The length of the lap is 6.213 km.
a What is the average speed (to nearest km/h) for the lap record?
b How long is the race if the winning car travels the 161 laps at the average speed for the lap
record? Answer to the nearest minute.

I only need the last question! Seriously struggling

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average