[STATISTICS] Possible imprecision or bias of BinomialDistribution.inverseCumulativeProbability() or NormalDistribution.inverseCumulativeProbability()

[Roman Leventov]

I try to approximate inverse CDF of BinomialDistribution with inverse CDF
of NormalDistribution. Works pretty well, but there is a noticeable bias,
that may be a sign of some imprecision or bias in either
BinomialDistribution.inverseCumulativeProbability(), or
NormalDistribution.inverseCumulativeProbability(), or both.

See
https://stats.stackexchange.com/questions/392281/approximation-of-inverse-cdf-of-binomial-distribution-with-inverse-cdf-of-normal
.