Probability scientist Atli decides to play in a lottery where there are many prizes on offer. The odds to win per ticket in the lottery are 1/100 or 0.01. Atli decides to try his luck and buys 10 tickets. a. What is the probability that Atli will win exactly one of the tickets? b. What is the probability that Atli will win at least one of the tickets?

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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.