# Random Variable Probability

Random variable X takes on the values 5, 20, 3, 200

they each take on the probabilities .60, .30, .08, .02 respectively. Use the statistical capacity of your calculator to find the expected value of X rounded to one place of decimal.

I missed this lecture and I'm confused as to what the statistical capacity means. Could someone show me how to do this on a Casio fx-991MS?

-

The probabilities are : $p_1=0.60, x_1=5; \\p_2=.30, x_2=20;\\ p_3=.08,x_3=3; \\p_4=.02,x_4=200$.
The expectation is $E(X) = \sum p_ix_i = 0.6\times 5+0.3\times 20 + 0.08 \times 3+0.02 \times 200 = ?$