The sum of all the probabilities in a discrete probability distribution must be equal to [?]

5 answers

The sum of all the probabilities in a discrete probability distribution must be equal to 1. This is because the total probability must account for all possible outcomes in the distribution.

A numerical outcome of a probability experiment is called [blank]

A numerical outcome of a probability experiment is called a random variable.

are you sure

Yes, I am sure. In probability and statistics, a random variable is defined as a numerical outcome of a probability experiment. It can take on various values, each associated with a certain probability. If there's anything more specific you need or if you're looking for a different term, please let me know!