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.

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

answer: check all that apply, where the options?

step-by-step explanation: