Chi Square Calculator - OnlineBelow you can find a Chi-square calculator. In probability and statistics, the chi-square distribution with k degrees of freedom is the distribution of a sum of k2 independent standard normal random variables. It’s one of the most used probability distributions in inferential statistics. This spreadsheet calculates the tail-end value for points on a chi-square (X2) distribution curve. You must enter the X2 value and the degrees of freedom.  Chi-square distribution curve
The unshaded area
represents the tail-end
value of X2.
The shaded area
represents the percentile. The X2
distribution function is calculated using the following formulas: with v odd,
with v even,  where v = degrees of freedom
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