3. Scatter plots and estimating coFFelation The Pearson correlations have been c

Question

3. Scatter plots and estimating coFFelation The Pearson correlations have been computed for five sets of sample scores and are shown in ascending order in the following table -0.92 -0.76 0.00 0.66 0.82 The following are scatter plots (including the regression line) for each set of scores. (Scales for the X- and Y-axes are the same on all five plots.) Study the plots, and then match each plot with its Pearson correlation. Click on each of the five boxes within the plots, and then enter the value of the Pearson correlation Hint: To match up the Pearson correlations to their corresponding plots, remember to consider the direction of the relationship (which of the preceding plots show a negative relationship and which show a positive relationship?) and how closely the points fit the line (correlations whose absolute values are near 1 indicate that the points fit the line very closely). Of the five sets of scores, the proportion of the variability in Y accounted for by X is highest for the set whose Pearson correlation is Consider the set of sample scores with a Pearson correlation of r-0.76. What percentage of the variability in Y is accounted for by X? 76% Q 44% 64% 58%

Explanation / Answer

A)

B) the proportion of the variability in Y accounted for by X is highest for the set whose Pearson correlation is 0.00 .

C)here 76% of the variability in Y is accounted for by X . If set of sample score with a Pearson's correlation r = -0.76

Plot No r value 1 -.92 2 .66 3 .82 4 0.0 5 -.76

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.