Estimating normal tail extreme probabilities

In the previous post I said the probability of a normal distribution being 50 standard deviations from its mean was absurdly small, but I didn’t quantify it. You can’t simply fire up something like R and ask for the probability. The actual value is smaller than can be represented by a floating point number, so […] The post Estimating normal tail extreme probabilities first appeared on John D. Cook....

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