Interview Question: Necessary, or Sufficient?

Sample Question #91 (statistics)

Given two random variables X and Y, does independence between X and Y imply zero correlation? Does zero correlation imply independence?

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2 Responses to Interview Question: Necessary, or Sufficient?

  1. Brett says:

    ANSWER
     
    Yes.
    Not necessarily. 

  2. Brett says:

    See Sample Question #107 for a case when non-correlation does also mean independence. 

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