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Expected value
This article is about the term used in probability theory and statistics. ... In probability theory, the expected value of a random variable is intuitively the long- run ... .. we can use the followin... |
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Expected Value in Statistics: Definition and Calculating it
Definition of expected value & calculating by hand and in Excel. Includes video. Find an expected value for a discrete random variable. |
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Expected Value | WyzAnt Resources - Tutors
Since X is a discrete random variable, the expected value is given by: Although you wouldn't expect to ... variable X: Example 3: X is a random variable given by the following probability distribution: ... of a Random Variable · Statistics Tutors ... |
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5.3 - Expected Value of a Discrete Random Variable | STAT 200
STAT 200. Elementary Statistics ... Expected Value (i.e., Mean) of a Discrete Random Variable. Law of ... . Sample Statistic, Population Parameter. Mean, x ¯, μ . |
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Expected Value: Definition - Stat Trek
Definition of expected value, from the Stat Trek dictionary of statistical terms and ... Use the following formula to compute the mean of a discrete random variable. |
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What Is the Formula for Expected Value - Statistics - About.com
The formula for the expected value is relatively easy to compute. It simply involves several multiplications and additions. |
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Expected Value - YouTube
In this video, I show the formula of expected value, and compute the ... Lecture 3: Birthday Problem, Properties of Probability | Statistics 110 ... |
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Statistics 101: Expected Value - YouTube
Statistics 101: Expected Value. In this video we discuss the basics of expectedvalue. If you have ever calculated a weighted average you can ... |
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An introduction to the concept of the expected value of a discrete random ... Learn the Variance Formula and Calculating Statistical Variance! |
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Expected value of binomial distribution - Khan Academy
Expected value of a binomial distributed random variable. ... This number is important in statistics because it represents the number or ways to arrange a group of n-distinct objects. The expected value is ... .. The basic ideas are the following: 1. |