Final answer:
Mathematics in a high school setting focuses on determining the expected number of crookedly parked cars, the probability of at least 10 being crookedly parked, and safe crossing distances relative to vehicle speeds. Detailed calculations for each scenario were explained.
Step-by-step explanation:
The subject of the question is Mathematics, focusing on probability and statistical analysis. The question provides data about the percentage of cars parked crookedly in a parking garage and asks about the expected number and probability related to the survey of 22 cars.
To calculate the expected number of cars parked crookedly (midwaay) out of 22, we use the percentage given (37.5%). The expected number is 37.5% of 22, which equals 8.25. Therefore, the correct answer to the first part is option A, 8.25.
For the probability of at least 10 out of 22 cars parked crookedly, the specific probability value is not calculated in the provided information. Since we only have two probability options provided, without the relevant calculations or additional information, we cannot confidently determine the correct option between A. 0.1263 or B. 0.1607.
Regarding parking space availability, if it usually takes five minutes on average to find a spot, it would be unusual to find one in less than one minute, assuming a normal distribution of the times.
For the safe distance to cross the road, considering a speed limit of 60 km/hr and a car length of 3.5 m with a required safe walking distance exceeding the car's width, the idea is to calculate the time it would take for a car to cover the 4 m distance at the given speed, to ensure pedestrian safety.