Number of Birds
Alana and Eva are sisters.Let X denote the number of birds that Alana may have in the next two years,and let Y denote the number of birds Eva may have during the same period.The marginal probability distributions of X and Y are shown below. 
-{Number of Birds Narrative} Verify that E(XY)= E(X)E(Y).Did you expect this result? Why?
Definitions:
Double Standard
The application of different sets of principles for similar situations, or to different people in the same situation.
Sexual Behavior
Activities or practices related to the expression of sexuality, which can vary greatly among individuals and cultures.
Committed Relationship
A long-term, romantic relationship where partners are dedicated to each other and share mutual goals and intimacy.
Desirable
Having qualities that are pleasing or sought after by others; often refers to attributes that make something or someone attractive or enviable.
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