Give the probability distribution for X: x 0 1 2 3
f(x) 1/4 1/8 1/2 1/8

Find Var.

Var(x)=1

Step-by-step explanation:

xp(x)         x²x*p(x)x²*p(x)

01/4    00         0

11/8    11/8             1/8

21/2    41           2

31/8    93/8            9/8

Total                      3/2              13/4

The required variance can be computed as

Var(x)=sumx²*p(x)-(sum(x*p(x)))²

Var(x)=13/4-(3/2)²

Var(x)=13/4-9/4

Var(x)=4/4

Var(x)=1

Thus, the required variance is 1.

step-by-step explanation:

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without

correct answer was 0.5