04 May Question? Question 1 10 out of 10 points
Question
? Question 1 10 out of 10 points
Rho is used where one or both variables are at least of interval scaling.
? Question 2 0 out of 10 points
The value of r obtained by calculating the correlation between X and Y is the same as the correlation between Y and X.
? Question 3 10 out of 10 points
In an inverse relationship as one variable gets larger the other variable gets smaller.
? Question 4 10 out of 10 points
The slope of the line reveals whether the relationship is positive or negative.
? Question 5 0 out of 10 points
In a perfect linear relationship all the points must fall on a straight line.
? Question 6 10 out of 10 points
In a straight line the slope approaches zero as the line comes near the point X, Y.
? Question 7 10 out of 10 points
r2 is called the coefficient of determination.
? Question 8 10 out of 10 points
In order to compute r, we must first convert each score to its z score and then do our calculations with the z scores.
? Question 9 10 out of 10 points
If the value of rho for a set of ordinal data equaled 0.68, the value of r for the same data would be 0.68.
? Question 10 10 out of 10 points
For a linear relationship to exist, all the points must fall on a straight line.
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