卡方分佈
{{Probability distribution |name = 卡方分布 |type = 密度 |pdf_image = |cdf_image = |parameters =k \in \mathbb{N}^\star~~ 自由度 |support = x \in [0; +\infty), |pdf = \frac{1}{2^{\frac{k}{2}}\Gamma\left(\frac{k}{2}\right)}\; x^{\f…
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{{Probability distribution |name = 卡方分布 |type = 密度 |pdf_image = |cdf_image = |parameters =k \in \mathbb{N}^\star~~ 自由度 |support = x \in [0; +\infty), |pdf = \frac{1}{2^{\frac{k}{2}}\Gamma\left(\frac{k}{2}\right)}\; x^{\f…