next up previous
Next: Distribution of squares of Up: Other properties of the Previous: Other properties of the

Sum of variates

If \( X \ensuremath{\sim \mathrm{\chi^2}(\nu_1)}\) and \( Y \ensuremath{\sim \mathrm{\chi^2}(\nu_2)}\), then, as can be expected, \( X \pm Y \ensuremath{\sim \mathrm{\chi^2}(\nu_1 \pm \nu_2)}\). (No proof, yet.)

Alexander Frolkin 2001-02-01