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CORREL of % vs Total Numbers

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    CORREL of % vs Total Numbers

    Hi,

    I have a question about correlation. We are looking at Website Actions (Represented as Goal #) and Correlation to a specific Goal (Represented as SV). We have the total count of each action as well as a conversion rate of each action. When comparing the conversion RATES, the correlation is close to 0, but when looking at the correlation of the total amounts, it's closer to 100%. I can't wrap my head around why this is... does it have to do with how I'm calculating it? How the Formula works? Hoping someone could help.

    So to clarify, Why is the CORREL formula saying that two rates are not correlated, but the total numbers are?

    Thanks in advance!
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    Re: Correlation Question

    Administrative Note:

    We would very much like to help you with your query, however the thread title does not really convey what your request is about. Tell us what you are trying to do, not how you think it should be done.

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    Re: Correlation Question

    Updated to fix issues. please let me know if there are any other issues?

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    Re: CORREL of % vs Total Numbers

    If in doubt... draw a picture (sheet 2). You will see that 3 values are probably skewing the whole thing. They are in the first 100 rows and have been highlighted in orange.

    Even if they are removed, there is little or no correlation. Looks like your variables are unrrelated.
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    Re: CORREL of % vs Total Numbers

    Fair - I see the outliers, but If you remove those, the numbers still appear higher when correlating the total figures, and stays the same when you correlate the conversion rates...

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    Forum Moderator Glenn Kennedy's Avatar
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    Re: CORREL of % vs Total Numbers

    Yes... but IMHO the conclusion is that clicks are unrelated to the other parameters which do correlate.

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    Re: CORREL of % vs Total Numbers

    How are clicks related to goals?

    Stating the obvious but in seeking to compare different correlations it seems to me that one of the data sets should be consistent for each correlation.
    L6, L9, L12 & L15 all use column G as the common data set but L3 doesn't. Admittedly it uses column I which in turn uses column G in its calculation but it also modifies this by dividing by the column B clicks, which comes back to the question above.

    Why do some clicks exceed the number of goals and others don't. I'd need to understand a bit more about what your data is measuring to comment a bot more.

    For instance if in column J you divided G by H you'd get 66% which given goal 13 is the largest number of goals might more accurately reflect the correlation, but as I say we really need to know more about the data. An obvious question is how was the goal SV column G constructed in the first place?
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    Re: CORREL of % vs Total Numbers

    If we want to simplify my question - I'd look at L15 and L3 as those are similarly compared. L3 is looking at the completion rate for All Actions (Column H) and "Goal SV" which is an offsite action, to answer that question. So what I'm seeing is that each keyword's conversions and SVs correlate to one another, meaning that if someone completes an action on the site, they are more likely to have also completed an SV. But, if I look at the rates of each, they are not correlated at all. If a keyword is likely to convert to an action, it's not likes to have a correlation to completing an SV at a similar rate. Am I thinking about that incorrectly?

    In regards to the above 100% completion rate, we could expect some keywords to have higher than 100% as you can complete more than one Site action, or Goal, but I'm not sure why some are over 1000%

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