2 cards are chosen at random from a deck of 52 cards. Suppose we win $2 for each spade and lose $1 for each heart or diamond selected, we neither win nor lose if we pick a club. Let X denote our winnings and px be the probability mass function of . What is px(2)

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Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.