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4. Probability - Part 2 of 2
4. Probability / Fundamental Counting Principle / Problem 6
Problem 6

A security badge code is made up of 55 characters. Each character can be any uppercase letter from A to Z or any digit from 00 to 99, except that the first character must be a letter and the last character must be an even digit. What is the probability of guessing the correct badge code on the first attempt?