4.126 Mean of the distribution for the number of aces.
In Exercise 4.98 (page 217), you examined the probability distribution for the number of aces when you are dealt two cards in the game of Texas hold 'em. Let represent the number of aces in a randomly selected deal of two cards in this game. Here is the probability distribution for the random variable :
| Value of | 0 | 1 | 2 |
| Probability | 0.8507 | 0.1448 | 0.0045 |
Find , the mean of the probability distribution of .