卡方计算器
卡方检验
公式
χ² = Σ(O-E)²/E
Chi-square tests if observed frequencies differ from expected.
示例
O: 30,20 vs E: 25,25
χ² = 2.0, not significant at α=0.05.
常见问题
关于 卡方计算器
Calculate chi-square test statistic for goodness of fit.
卡方检验
Chi-square tests if observed frequencies differ from expected.
χ² = 2.0, not significant at α=0.05.
Calculate chi-square test statistic for goodness of fit.