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Results tagged with non-central
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user 19917
use for questions about socalled non-centrality parameters, in distributions such as t, F, chisquare, wishart and others.
26
votes
1
answer
15k
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sum of noncentral Chi-square random variables
I need to find the distribution of the random variable
$$Y=\sum_{i=1}^{n}(X_i)^2$$
where $X_i\sim{\cal{N}}(\mu_i,\sigma^2_i)$ and all $X_i$s are independent. I know that it is possible to first find …
- 441