Final answer:
The questions presented require specific information or data to answer accurately. Without that information, we can only provide a general approach based on principles of probability and combinatorics for counting possible outcomes and calculating probabilities. Standard statistical methods would be used for more data-oriented problems.
Step-by-step explanation:
It seems like there might be some confusion with the questions provided. They appear to be from different problems relating to probability and statistics, but since the specific information needed to solve these problems (such as the structure of the license plates or the demographic distribution of drivers) isn't provided, we can't calculate exact probabilities or numbers of outcomes. However, I can give you a general approach for each type of problem:
- License plates - To find the number of possible license plates, determine the rules for license plate creation (number of letters, numbers, and allowed characters), then use the counting principle, which involves multiplying the number of options per position.
- Probability without B or D - Calculate the total number of possibilities that exclude the letters B and D, then divide by the total number of possible plates.
- Probability with no vowels - Similar to the previous, calculate the total possibilities that exclude vowels, then divide by the total number of possible plates.
For problems involving statistical data and distributions (like the percent of licensed U.S. drivers, the weight of players, etc.), standard formulas and methods from probability theory are used to compute expectations, construct contingency tables, and find probabilities given certain conditions.