1. Do the probabilities in the probability distribution tables of discrete random variables always add up to 1?
Yes.
2. Is a probability density function the same as a probabiliy distribution or function?
Yes, they all mean the same.
1. Do the probabilities in the probability distribution tables of discrete random variables always add up to 1?
Yes.
2. Is a probability density function the same as a probabiliy distribution or function?
Yes, they all mean the same.