Probability Distribution

Question 1

What is a random variable and how is it indicated?

Answer 1

A variable whose possible values are the numerical outcomes of an experiment

X (capital)

e.g.
Probability that the random variable assumes value x
P(X=x)

Question 2

What is a discrete random variable?

Answer 2

Can take some values in a range

Question 3

What is a continuous random variable?

Answer 3

Can take any values in a range

Question 4

How do you work out the probability of something?

Answer 4

1. Divide the probability rate
2. Times the probability rate with the frequency or winning rate etc.
3. Add up all the answers