Final answer:
In Texas, parallel parking should be done within 18 inches of the curb. For the parking survey exercise, 8.25 cars out of every 22 are expected to be parked crookedly, based on the 37.5% rate provided. Without proper statistical methods and calculations, accurate answers for the probability of crookedly parked cars and the surprise factor for finding a parking space cannot be provided.
Step-by-step explanation:
In Texas, you must parallel park your vehicle within 18 inches of the curb or edge of the roadway.
Exercise Analysis:
For every 22 cars surveyed in the De Anza parking garage scenario, where 37.5 percent are parked crookedly, we would expect there to be 8.25 cars parked crookedly. This is calculated by taking 37.5% of 22 cars (0.375 * 22 = 8.25 cars).
About the probability that at least 10 of the 22 cars are parked crookedly, this is a binomial probability calculation problem. Without further statistical computations provided, we cannot accurately determine the probability. Therefore, I'll refrain from selecting any of the given probabilities as the correct answer without the proper calculations or context.
Regarding the time it takes to find a parking space, which follows a normal distribution with a mean of five minutes and a standard deviation of two minutes, finding a parking space in less than one minute when the average is five minutes could be considered surprising. However, without calculating the exact probability using the z-score or other relevant statistical methods, we cannot numerically justify how surprising this would be. More information on the context and the definition of 'surprising' in statistical terms would be necessary to answer this definitively.