p isnt 0.5, which is the point of the article cf. https://www.wolframalpha.com/input?i=binomial+distribution+n%3D40000%2C+p%3D0.508 https://www.wolframalpha.co

p isnt 0.5, which is the point of the article cf. https://www.wolframalpha.com/input?i=binomial+distribution+n%3D40000%2C+p%3D0.508 https://www.wolframalpha.com/input?i=binomial+distribution+n...