Problem 2E

Problem 2E

Let the random variable X have the pmf

Compute E(X), E(X2), and E(3X2 − 2X + 4).

Step-by-Step Solution:

Answer

Step 1 of 4

f(x)=,x=-1,0,1

f(-1)=(1+1)2/9

=0.444

f(0)=(0+1)2/9

=0.111

f(1)=(1+1)2/9

=0.444

Step 2 of 4

###### Chapter 2.2, Problem 2E is Solved

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Step 3 of 4