Statistics Dictionary
To see a definition, select a term from the dropdown text box below. The statistics
dictionary will display the definition, plus links to related web pages.
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Normal Random Variable
The random variable X
in the normal equation is called the normal random variable. The normal
equation is shown below:
Normal equation. The value of the
random variable
Y is:
Y = [ 1/σ
* sqrt(2π) ] * e
(x - μ)2/2σ2
where
X is a normal random variable, μ is the
mean, σ is the standard deviation, π
is approximately 3.14159, and
e is approximately 2.71828.
