Theoretical Distribution

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Question : 24 of 118

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The probability density function of a normal variable

x

is given by

$f(x)=\;{1}/{σ √{2 π}} ⋅ e^{-\;{1}/{2}(\;{x-µ}/{σ})^{2}}$ for $-∞ ≺ x ≺ ∞$
$f(x)=\;{1}/{σ √{2 π}} e \;{-(x-µ)^{2}}/{2 σ^{2}}$ for $0 ≺ x ≺ ∞$
$f(x)=\;{1}/{σ √{2 π σ}} e^{-(\;{x-µ^{2}}/{2 σ^{2}})^{2}}$ for $-α ≺ x ≺ ∞$
none of these.

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