What is indicated by a positive value for a correlation? A. Increases in X tend

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What is indicated by a positive value for a correlation? A. Increases in X tend to be accompanied by increases in Y B. Increases in X tend to be accompanied by decreases in Y C. A much stronger relationship than if the correlation were negative D. A much weaker relationship than if the correlation were negative 1. The scatter plot for a set of X and Y values shows the data points clustered in a nearly perfect circle. For these data, what is the most likely value for the Pearson correlation? A. A positive correlation near 0 B. A negative correlation near 0 C. Either positive or negative near 0 D. A value near +1.00 or-1.00 2· For which of the following Pearson correlations would the data points be clustered most closely around a straight line? A. r--0.10 B. r-+0.40 C. r =-0.70 how close the points are to a straight line. 3. D. There is no relationship between the correlation and 4. A researcher measures IQ and weight for a group of college students. What kind of correlation is likely to be obtained for these two variables? A. A positive correlation B. A negative correlation near one C. A correlation near zero D. A correlation A researcher records the odometer reading and price for a group of used Hondas. What kind of correlation is likely to be obtained for these two variables? 5. A. A positive correlation B. A negative correlation C. A correlation near zero D. A correlation near one 20, Y-30, and XY-74. What is the value of SP for A set of n = 10 pairs of scores has these data? A. 74 B. 24 C. 14 D. -14 6. 7. What is the value of SP for the following set of data? XY A. 5 B.-5 C. 15 D.-15 8. A set of n 15 pairs of scores (X and Y values) has SS -4, SSy-25, and SP -6. What is the Pearson correlation for these data? A. 6/100 B. 6/10 C. 6/(100/15) D. 6/ 10/15 ) D. 6/(10/-/15)

Explanation / Answer

1. A (Increase in X tend to accompanied by increase in Y)

2. C (Either positive or negative near 0)

3. C (r=-0.70)

4. C (A correlation near 0)

As per chegg Q&A guidelines I have answered first four parts, if u want more please ask a seperate question.

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