A researcher records the odometer reading and price for a group of used Hondas.

Question

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? A positive correlation A negative correlation A correlation near zero A correlation near one If the Spearman correlation for a set of scores is equal to + 1.00, then the Pearson correlation for the same scores would also be equal to +1.00. True False If the value of the Pearson correlation is r = +1.00 or -1.00, then all data points in a scatter plot fit perfectly on a straight line. True False

Explanation / Answer

Question 38:

The correlation between the odometer reading and the price of the group of used hondas should have be close to zero, because the odometer reading has no relation between the prices of used hondas.

Therefore c) is the correct asnwer here.

Question 39:

If a spearman correlation for a set of scores is +1, it is not necessary that the scores pearson correlation would also be 1 because spearman correlation coefficient is computed using the relative ranks of the various scores, while pearson on the relative values as well.

Therefore False is teh correct answer here.

Question 40:

If the value of the pearson correltion is exactly -1 or +1, then all the data points must lie on the perfect straight line. Therefore the given statement is true.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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