what is the probability function for presence/absence how do you calculate probability on a vector? what is the function for presence/absence vectors how to find the presence of a vector p(vecx) is a function that can be used to compute the probability distribution for a given vector what is a vector of a function how is a function of a random variable used what is the purpose of a function for predicting presence/absence? what is the function for a vector what is random variable example how to find absence probability over random variable javascript how to find the presence of a vector what is the function of a random variable? how to compute probability of presence how to find absence vectors how does a vector represent what is the function of a vector what is the difference between presence and absence what is the probability of absence which statement indicates a function of a random variable for calculating the presence or absence probability?