Calculations based on Chi Square Distribution

Chi Square Distribution

Chi Square distribution is equal to the number of standard normal deviates being summed. Therefore, Chi Square with one degree of freedom, written as χ²(1), is simply t distribution is equal to the number of standard .normal deviates being summed. Therefore, Chi Square with one degree of freedom, written as χ²(1), is simply.

Χ² = [ ( n - 1 ) * s² ] / σ²

The distribution of the chi-square statistic is called the chi-square distribution. The chi-square distribution is defined by the following probability density function:

Y = Y₀ * ( Χ² ) ^{( v/2 - 1 )} * e^{-Χ2 / 2}