i want to make sure that i understand this question step by step, thank you!

Q1, 4 points This question is meant to be a refresher in statistics and elementary counting, which we'll be relying on in future analyses of a variety of algorithms. You are provided with 5 cards, colored Red, Yellow, Blue, Green, and Purple. You shuffle the cards and turn over the top four cards. part a What is the probability that the first letters of the colors of the four cards that you turn over are not in alphabetical order? For example, if the first card you turn over is Y, and the second card you turn over is P, then the four cards you turn over are not in alphabetical order because already the first two are out-of-order. part b Assume that if instead of 5 cards, you have n cards, numbered {1, 2, 3, ..., n}. You shuffle, and instead of turning over the top 4 cards, you turn over the top k cards, where k _ n. What is the probability that the numbers for the top k cards that you turn over are in increasing order