In: Statistics and Probability
The Arizona personal vehicle title typically has 7 characters, the first 3 being letters and the next 4 being digits between 0-9. Assume that letters or digits CANNOT be repeated.
a. What is the number of distinct titles that can be created using all letters and digits?
b. How many vehicles can have at least an A and a 2 in their title?
c. If the order of 3 letters followed by 4 digits is ignored, what are the possible distinct titles?