卡方拟合优度检验计算器 — 公式
Chi-Square Goodness of Fit
chi2 = Sum((O-E)^2/E)
Tests observed vs expected frequency distribution.
计算示例
O=45, E=50, k=5.
- chi2 = 25/50 = 0.5
- df = 4
chi2 = Sum((O-E)^2/E)
Tests observed vs expected frequency distribution.
O=45, E=50, k=5.