Final answer:
For every 25 parking spaces, there must be at least one handicapped space according to ADA guidelines. Exercise 8 expects about 8.25 cars to be parked crookedly out of 22, and exercise 72 suggests it takes more than 2.41 minutes to find a parking space 70% of the time, as per normal distribution statistics.
Step-by-step explanation:
According to the ADA guidelines, for every 25 parking spaces, there should be at least one handicapped space. The ADA provides clear ratios for parking spaces to ensure accessibility.
When applied to exercise 70, if statistically it normally takes more than a minute to find a parking space, then it would indeed be surprising to find one in less time considering the given normal distribution of the length of time with a mean of five minutes and a standard deviation of two minutes.
For exercise 8, the expected number of cars parked crookedly out of 22, based on 37.5 percent, would be 8.25 (Option A). Lastly, for exercise 72, if 70% of the time it takes more than a certain amount of minutes to find a parking space, the time would be 2.41 minutes according to the provided normal distribution data.