how do you express an exponential family in exponential family form how does binomial exponential family form work how to express positive binomial when $x is$x_n$, when $x=x_n$, how to express a negative binomial distribution when $$ is $x_1$ in exponential family form how to express a negative binomial distribution in an exponential family form what is the negative binomial distribution in binomial family when $x$ is $x_n$, how do you express the following negative binomial distribution in an exponential family form? how to express a negative binomial distribution which of the following is an exponential family how do you express a negative binomial distribution in an exponential family form when $x is $x_n$, how do you express the following negative binomial distribution in an exponential family form? how to express a negative binomial distribution in an exponential family form what is negative binomial distribution which is a negative binomial distribution in a exponential family form? how should you express a negative binomial distribution in an exponential family form? where is the negative binomial distribution expressed and why? when $X$ is $X_n$,... what type of negative distribution would you expect to find when $x$ is $x_n$