Find the expected value of the random variable in the experiment.
-Three cards are drawn from a deck without replacement. The number of aces is counted.
A) .2308
B) .2174
C) 1.0134
D) 1

Question

Quizplus · Accepted Answer

The probability of drawing an ace on the first draw is 4/52. The probability of drawing an ace on the second draw is 3/51. The probability of drawing an ace on the third draw is 2/50. The expected value is (4/52) + (3/51) + (2/50) = .2308.

Find the Expected Value of the Random Variable in the Experiment