number_f,number_s,probability_s,cumulative!Returns the negative binomial distribution, the probability that there will be ...

!number_f,number_s,probability_s,cumulative!!Returns the negative binomial distribution, the probability that there will be Number_f failures before the Number_s-th success, with Probability_s probability of a success!is the number of failures!is the threshold number of successes!is the probability of a success; a number between 0 and 1!is a logical value: for the cumulative distribution function, use TRUE; for the probability mass function, use FALSE!