___ is often used to measure the proportion of variability in the data that can
ID: 3261966 • Letter: #
Question
___ is often used to measure the proportion of variability in the data that can be explained by the relationship between X and Y? r r^2 s^2 F A researcher reports that there is no consistent relationship between grade point average and the number of hours spent studying for college students. The correlation between grade point average and the number of hours studying is an example of a positive correlation a negative correlation a correlation near zero a correlation near one A set of n = 5 pairs of X and Y values has sigma X = 10, sigma Y = 20 and sigma XY = 10. For this set of scores what is the value of SP? SP = 30 SP = -30 SP = -35 SP = 35Explanation / Answer
Solution:-
30) r2 is often used to measure the proportion of variability in the data that can be explained by the relationship between X and Y.
31) A correlation near zero.
If there is no consistent relationship that means that coreelation between the two variables is zero.
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