Probability and Counting Rules and Techniques

In mathematics, some questions begin with “How much, how many. In these type of questions you are being asked to count something: how many bananas Sonia bought, how many Rupees did Rizwan spend, how many pages did Fatima read, how many numbers are required to satisfy a certain formula, or how many ways are there to complete a given task. Usually these problems can be solved by simple arithmetic. Sometimes it helps to use basic probability rules, and Vann diagrams.In this chapter, we shall deal with such rules and counting principles that helps to solve such problems.



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