Porisma

A hint to get started

Transform a mean and variance

Calculate the mean and variance of Y=2X+3Y=2X+3, where XX has distribution

xx0123
P(X=x)P(X=x)1/41/41/81/81/21/21/81/8

CJC · Lecture · Example 13

Use L1 for values and L2 for probability weights; read population sigma.

Transform the mean by 2E(X)+3 and the variance by 4Var(X).

Read the worked solution