# X and Y

Not what you're looking for?

1)If X and Y are both discrete, show that ʸ ̄ xPX/Y9x/y)=1 for all y such that pY(y)>0.

10) Suppose X and Y are independent continuous random variables. Show that

E[X/Y=y]=E[X] for all y

##### Purchase this Solution

##### Solution Summary

The solution addresses if X and Y are both discrete, show that ʸ ̄ xPX/Y9x/y)=1 for all y such that pY(y)>0. Suppose X and Y are independent continuous random variables. Show that E[X/Y=y]=E[X] for all y

##### Solution Preview

10) For two random variables X and Y to be independent,it is required that no possible experimental value of X be able to give any new information about the probability of any experimental value of Y (and, vice versa).

Therefore, for each and every (and all) ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.