Final answer:
Parallel parked vehicles must be within 12 inches of the curb. Approximately 8.25 out of 22 cars may be parked crookedly in a given situation, with relevant probabilities provided.
Step-by-step explanation:
When parked parallel to the curb, your curb side wheels must be no more than 12 inches from the curb according to most local traffic regulations, although this distance can vary. The information provided does not directly answer the question, but generally, a distance of 8-15 diameters side-to-side and deep is mentioned for parking space size rather than the distance from the curb. Safety considerations are also an important aspect, for example considering how far away a car must be before it is safe to cross could be multiple car-lengths depending on the specific situation.
For a given statistical problem, like the one mentioned in the De Anza parking garage study, if 37.5 percent of the cars are parked crookedly, approximately 8.25 of every 22 cars will be parked this way. The probability that at least 10 of the 22 cars are parked crookedly is given as 0.1263 or 0.1607.