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Math Help - covariance

  1. #1
    Junior Member
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    covariance



    I dont understand how it comes to this?
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  2. #2
    Super Member ILikeSerena's Avatar
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    Re: covariance

    Hi Helpmeplease1!

    Do you have the formulas for covariance and correlation?
    Those need to be applied.

    For reference:
    Covariance - Wikipedia, the free encyclopedia
    Correlation and dependence - Wikipedia, the free encyclopedia

    However, you still should define w_a and w_b.
    What are they?
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