The research on the characteristics of approximation process of chi-square distribution function based on MATLAB

Abstract

Chi-square distribution is asymptotically normal, which has been proved by predecessors. However, there is no specific description of this approximation process. Based on the previous research, this paper analyzed the specific-characteristics of chi-square distribution further by using MATLAB software. The results indicated that the chi-square distribution moves from the left to the right to gradually approach the corresponding normal distribution as its maximum values, skewness values, and kurtosis values decreasing.