6) Determine which scatterplot shows the strongest linear correlation. A) B) D)

Question

6) Determine which scatterplot shows the strongest linear correlation. A) B) D) 7) A researcher determines that the linear correlation coefficient is 0.85 for a paired data set. This 7) indicates that there is A) insufficient evidence to make any decision about the correlation of the data. B) a strong positive linear correlation. C) no linear correlation but that there may be some other relationship. D) a strong negative linear correlation 8) A history instructor has given the same pretest and the same final examination each semester. He 8) is interested in determining if there is a relationship between the scores of the two tests. He computes the linear correlation coefficient and notes that it is 1.15. What does this correlation coefficient value tell the instructor? A) There is a strong negative correlation between the tests. B) The correlation is something other than linear C) The history instructor has made a computational error. D) There is a strong positive correlation between the tests

Explanation / Answer

6. The strongest linear correlation is shown by A) because the line is almost straight line

7. The value of correlation coefficient is very close to 1 and is also positive. Thus, the answer is B

8. Correlation coefficient lies between -1 and 1, thus there is some error made in the calculation C

Related Questions

Navigate

• Browse (All)
• Browse 6
• Subjects

---

---

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