# Chi-square distribution

 Calculator name Summary Chi-square distributionChi-square distribution Calculates the probability density function and lower and upper cumulative distribution functions of the chi-square distribution. Chi-square distribution (chart)Chi-square distribution (chart) Calculates a table of the probability density function, or lower or upper cumulative distribution function of the chi-square distribution, and draws the chart. Chi-square distribution (percentile)Chi-square distribution (percentile) Calculates the percentile from the lower or upper cumulative distribution function of the chi-square distribution. Inverse-chi-square distributionInverse-chi-square distribution Calculates the probability density function and lower and upper cumulative distribution functions of the inverse-chi-square distribution. Inverse-chi-square distribution (chart)Inverse-chi-square distribution (chart) Calculates a table of the probability density function, or lower or upper cumulative distribution function of the inverse-chi-square distribution, and draws the chart. Inverse-chi-square distribution (percentile)Inverse-chi-square distribution (percentile) Calculates the percentile from the lower or upper cumulative distribution function of the inverse-chi-square distribution.