help on probabilty - binomial

[primer]

(11-20-2017 10:07 PM)salvomic Wrote:  I think you should use BINOMIAL_CDF(n, p,k,[k2]) that "returns the probability of k or fewer successes out of n trials..."

Yes, thank you.... it was helpfull, I was totally lost in Inference app, it was a nightmare !
Not so easy to follows these probability stuffs.