“non-central t-distribution”的概念、定义、翻译、参考文献-科学参考

non-central t-distribution

Statistics

If Y₁ has a standard normal distribution, if Y₂ is independent of Y₁ and has a chi-squared distribution with ν degrees of freedom, and if λ is a non-zero constant, then X, given by $non-central t-distribution$ is said to have a non-central t-distribution with ν degrees of freedom and non-centrality parameter λ. The probability density function f of X is given by $non-central t-distribution$ where Γ is the gamma function. The mean and variance of X are $non-central t-distribution$ respectively (with ν>2). For large values of ν the distribution of X is approximately a normal distribution with mean λ and variance 1.

单词	non-central t-distribution
释义	non-central t-distribution Statistics If Y₁ has a standard normal distribution, if Y₂ is independent of Y₁ and has a chi-squared distribution with ν degrees of freedom, and if λ is a non-zero constant, then X, given by $non-central t-distribution$ is said to have a non-central t-distribution with ν degrees of freedom and non-centrality parameter λ. The probability density function f of X is given by $non-central t-distribution$ where Γ is the gamma function. The mean and variance of X are $non-central t-distribution$ respectively (with ν>2). For large values of ν the distribution of X is approximately a normal distribution with mean λ and variance 1.
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