Question

What is a discrete probability distribution? What two conditions determine a probability distribution?

Answer 1

Attached

Explanation:

Answer 2

`"A discrete pdf is a pdf of a discrete variable like the number of eyes thrown by a dice."`
`"The sum of all probabilities is 1 and the probabilities are ">=" 0."`

Explanation:

`"A discrete variable has a finite number of distinct values."`
`"Like the eyes thrown by a dice : 1,2,3,4,5, or 6."`
`"The discrete pdf for a dice throw is :"`
`"P[ X = k ] = 1/6 , k = 1,2,...,5,6."`
`"The pdf for the amount of rainfall in a month e.g. is not"`
`"discrete because there is no upper limit and the values"`
`"are continuous."`