Stats 151 - Random Variables and Probability Mas Function

What is a Random Variable?

Do the outcomes in a sample have to be numerical?

what is a discrete random variable?

What is a continuous random variable?

what is the probability distribution of x?

how do you find the probability of an event?

the probability that a sales man will sell 0 item is 0.20, 1 is 0.35, 2 0.15, 3 is 0.12, 4 is 0.10, 5 is 0.05, and 6 is 0.03. what is the probability they will sell at least 3 items?

At most 3 items?

Between 2 and 4?