The Correlation Coefficient Is a Measure of the Strength of Association

question 12

Essay

The correlation coefficient is a measure of the strength of association between two traits.Correlation,however,does not indicate causation.Think of one or two variables (not necessarily phenotypes)that are correlated and are causally linked,and one or two variables that may be correlated but are not likely to be causally linked.

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Definitions:

Independent

Not influenced by or contingent upon something else; in statistics, refers to variables that operate without dependency on other variables.

Joint Probability Distribution

Describes a probability distribution for two or more random variables simultaneously.

Car Salespeople

Professionals who specialize in selling automobiles, often working in dealerships to assist customers in finding and purchasing new or used vehicles.

Expected Return

The weighted average of all possible returns for an investment, based on the probabilities of each outcome.