## Example

Continuing with Examples 4 and 5, let us compute the following conditional probabilities:

f (X =-2 | Y = 3) = f (X = -= J)= 3) = 0.27/0.51 = 0.53

Notice that the unconditional probability f(X = -2) is 0.27, but if Y has assumed the value of 3, the probability that Xtakes the value of -2 is 0.53.

f(X = 2 | Y = 6) = f(X= 2 Y = 6) = 0.10/0.49 = 0.20 f (Y = 6)

Again note that the unconditional probability that X takes the value of 2 is 0.26, which is different from 0.20, which is its value if Y assumes the value of 6.

876 APPENDIX A: A REVIEW OF SOME STATISTICAL CONCEPTS

Was this article helpful?

Learning About The Rules Of The Rich And Wealthy Can Have Amazing Benefits For Your Life And Success. Discover the hidden rules and beat the rich at their own game. The general population has a love / hate kinship with riches. They resent those who have it, but spend their total lives attempting to get it for themselves. The reason an immense majority of individuals never accumulate a substantial savings is because they don't comprehend the nature of money or how it works.

Get My Free Ebook

## Post a comment