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Introduction - Mathematical Expectation | 12th Business Maths and Statistics : Chapter 6 : Random Variable and Mathematical Expectation

Chapter: 12th Business Maths and Statistics : Chapter 6 : Random Variable and Mathematical Expectation

Mathematical Expectation

An extremely useful concept in problems involving random variables or distributions is that of expectation.

Mathematical Expectation

Introduction

An extremely useful concept in problems involving random variables or distributions is that of expectation. Random variables can be characterized and dealt with effectively for practical purposes by consideration of quantities called their expectation. The concept of mathematical expectation arose in connection with games of chance. For example, a gambler might be interested in his average winnings at a game, a businessman in his average profits on a product, and so on. The average value of a random phenomenon is also termed as its Mathematical expectation or expected value. In the following sections, we will define and study the concept of mathematical expectation for both discrete and continuous random variables, which will be used in the following subsection.

 

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12th Business Maths and Statistics : Chapter 6 : Random Variable and Mathematical Expectation : Mathematical Expectation | Introduction


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