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Thread: Randomness testing using frequency within a block method, chi-square statistic doubt.

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    Randomness testing using frequency within a block method, chi-square statistic doubt.




    The chi-squared statistic under the frequency within a block method is defined as 4M summation of (proportion of 1s in block - 0.5 ) ^2
    where M is the length Of each block
    I understand that this follows a chi-square goodness of fit test observed-expected frequency square. But where does this 4M come from ?

    Thank you.
    Last edited by sshresth12; 05-27-2016 at 09:54 AM. Reason: I didnt thank people for reading it through

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