Thread: Fundamental Counting principle problem

In Europe, license plates are made up of 3 letters followed by 3 digits.

What is the probability that you will receive a license plate with at least one letter repeated?

I found the total number of outcomes 26x26x26x10x10x10 = 17 576 000

26x1x26x10x10x10?

No clue.
Please help

Originally Posted by terminator

In Europe, license plates are made up of 3 letters followed by 3 digits. What is the probability that you will receive a license plate with at least one letter repeated?

Recall that at least one is the opposite on none.
How many plates have no repeated letters?

Originally Posted by terminator

In Europe, license plates are made up of 3 letters followed by 3 digits.

What is the probability that you will receive a license plate with at least one letter repeated?

I found the total number of outcomes 26x26x26x10x10x10 = 17 576 000

26x1x26x10x10x10?

No clue.
Please help

Except the premise is not true and often the letters that do occur are not random or independent

CB