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Thread: is this summation correct?

  1. November 16th 2012, 09:37 AM #1
    kingsolomonsgrave
    kingsolomonsgrave is offline
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    is this summation correct?

    \Sigma (x_i+y_i) is equal to

    \Sigma(x_i) + \Sigma(y_i) is equal to

    Xbar times n plus Ybar times n which is equal to

    n(Xbar+Ybar)

    where 'Xbar' and 'Ybar' are the sample average
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  2. November 16th 2012, 11:59 AM #2
    RBowman
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    Re: is this summation correct?

    Hi!

    Yes, that's correct.
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