en:statpqpl:rozkladypl:ciaglepl

A density function is defined by:

where:

,

– an expected value of population (its measure is mean),

– standard deviation.

Normal distribution is a symmetrical distribution for a perpendicular line to axis of abscissae going through the points designating the mean, mode and median.

Normal distribution with a mean of and (), is so called a **standardised normal distribution**.

A density function is defined by:

where:

,

– degrees of freedom (sample size is decreased by the number of limitations in given calculations),

is a Gamma function.

Density function is defined by:

where:

,

– degrees of freedom (sample size is decreased by the number of limitations in given calculations),

is a Gamma function.

A density function is defined by:

where:

,

, – degrees of freedom (it is assumed that if i are independent with a distribution with adequately and degrees of freedom, than has a F Snedecor distribution ),

is a Beta function.

en/statpqpl/rozkladypl/ciaglepl.txt · ostatnio zmienione: 2022/02/11 16:40 przez admin

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