Discrete random variables

Video: Distributions 2 – Discrete Random Variables

We explore the properties of a discrete distribution of a random variable for the number of ice creams sold. This includes finding the expected value, variance and standard deviation for the original distribution, two distributions added together, the distribution times a constant, and the distribution plus a constant.

Note that there is an error at 7:13. It should say Var (aX) = a2Var(X). (The constant is squared.)

This video is available through Statistics Learning Centre. Supporting resources on Statistics Learning Centre include a quiz and notes in NZ Statistics Level 3.