### Wikipedia sayings about which of the following is not a property of a binomial experiment?

1.**Beta negative binomial distribution**

probability theory, a beta negative binomial distribution is the probability distribution of a discrete random variableĀ X equal to the number of failures needed

https://en.wikipedia.org/wiki/Beta negative binomial distribution

2.**Mathematical statistics**

distribution, for binomial-type observations but where the quantity of interest is the number of failures before the first success; a special case of the negative