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Variance
of a Random Variable
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of a Random Variable X
Random Variable
Distribution
Variance
of a Discrete Variable Formula
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Random Variables
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Random Variables
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Varinace
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Random Variables
in Statistics Maths
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in Statistics for MCA
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a Level Maths
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Variance
Variance
Formula Expectation
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6:26
Khan Academy
Variance and standard deviation of a discrete random variable
We learn how to calculate the mean and standard deviation of a discrete random variable. The concept of a random variable is explained, along with methods to calculate its expected value (mean) and measure its spread (variance and standard deviation). A practical example makes the concept easier to understand.
8 months ago
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