CHIDIST function

'''Returns the right-tailed probability of the chi-squared distribution. '''


 * If x < 0, the CHIDIST function will return the #NUM! error.
 * If x is not numeric, the CHIDIST function will return the #VALUE! error.
 * If degrees < 1, the CHIDIST function will return the #NUM! error.
 * If degrees > 10^10, the CHIDIST function will return the #NUM! error.
 * If degrees is not numeric, the CHIDIST function will return the #VALUE! error.