This wiki page mentions square-normal distribution:
https://en.wikipedia.org/wiki/Probability_distribution_fitting
I google "square-normal distribution", it gives me Chi Square Distribution, but I cannot find any info that they're the same.
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Sign up to join this communityThis wiki page mentions square-normal distribution:
https://en.wikipedia.org/wiki/Probability_distribution_fitting
I google "square-normal distribution", it gives me Chi Square Distribution, but I cannot find any info that they're the same.
Partially answered in comments:
Terms like "square-normal" usually emulate the model of the "log-normal" distribution: in the latter case, to say 𝑌 has a lognormal distribution mean the log of $𝑌$ is Normally distributed. Similarly, then, to say $𝑌$ has a "square-normal" distribution would ordinarily be understood as meaning the square of 𝑌 has a Normal distribution. That indeed is what Wikipedia claims: "the normal distribution applied to the square of the data values."
Unfortunately, there does not exist any such distribution. IMHO, that Wikipedia article is unusually poor and incomplete
. – whuber