What is CHISQ.INV.RT function in Excel? CHISQ.INV.RT function is one of Statistical functions in Microsoft Excel that returns the inverse of the right-tailed probability of the chi-squared distribution. If probability = CHISQ.DIST.RT(x,…), then CHISQ.INV.RT(probability,…) = x. Use this function to compare observed results with expected ones in order to decide whether your original hypothesis is valid. Syntax of CHISQ.INV.RT function CHISQ.INV.RT(probability,deg_freedom)…