Find the expected value of the random variable. X POX=X X)/ 0. P(X=x) 0.5 O 1.00 O 1.20 O 0.80 O 0.33 0.60 1 0.2 2 0.3

10. Expected value Find the expected value of each random variable: b. P(X= z) X Chapter 14: Exercises P(X = x) 100 0.1 0 0.2 200 C 0.2 1 0.4 300 0.5 2 0.4 400 0.2 TD -

A random variable X has the probability function as given in the table below. Suppose the experiment associated with X is performed 1000 times, and after each experiment we record the outcome of the experiment X = 1, 2, or 3 to obtain the sample X1,.,X1000. What is the expected value of: n E Xi i=1 P(X) 1 0.6 0.3 0.1 2. 3.

pls solve bcd Find the expected value of each random variable: a.  x 10 20 30 P(X=x) 0.3 0.5 0.2   b.  x 2 3 4 5 P(X=x) 0.3 0.4 0.2 0.1   c) Find the standard deviation of the random variables in part(a).d) Find the standard deviation of the random variables in part(b