7 rank correlation coefficent

Statistics
Tutor: None Selected Time limit: 1 Day

A rank correlation coefficient is to be calculated for a collection of paired data.  The values lie between -10 and 10.  Which of the following could affect the value of the rank correlation coefficient?
    I:  Multiplying every value of one variable by 3
    II:  Interchanging the two variables
    III:  Adding 2 to each value of one variable

    IV:  Replacing every value of one variable by its absolute value

Aug 4th, 2015

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   The answer is

            IV-   Replacing every value of one variable by its absolute value.............................................................

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Aug 4th, 2015

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