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    Can someone give me a quick refresher in the following in exchange for my eternal gratitude and some rep? An example for each would be just dandy.

    - Spearman's Rank Correlation Coefficient
    - Pearson's Product Moment Correlation Coefficient
    - Least Squares Regression

    I thank you.
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    (Original post by Alec)
    Can someone give me a quick refresher in the following in exchange for my eternal gratitude and some rep? An example for each would be just dandy.

    - Spearman's Rank Correlation Coefficient
    - Pearson's Product Moment Correlation Coefficient
    - Least Squares Regression

    I thank you.
    youre not edexcel?

    spearmans i did in geography but i dont remember

    PMCC and least squares are S1 (edexcel) and crana has KINDLY written out some revision notes
    but give me the rep ill rep her afterwards
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    (Original post by Alec)
    Can someone give me a quick refresher in the following in exchange for my eternal gratitude and some rep? An example for each would be just dandy.

    - Spearman's Rank Correlation Coefficient
    .
    Spearmans rank, to find out how two sets of data relate order-wise, using the formula 1-(6Ed^2/n(n^2-1))
    where E is sum of!
    n is the number of data
    d is the difference between ranks
    - Pearson's Product Moment Correlation Coefficient
    Also a measure of correlation between two sets of data, measured using the r value, where +1 is perfect +ive correlation
    -1 perfect -ive correlation:
    There are variations of the formula:
    Sxy/sqrtSxxSyy... check a formula booklet...
    - Least Squares Regression
    YOu mean Least Squares regression line?
    thats the theoretical line of best fit, there's also a formula for that

    hope it helps
 
 
 

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