The correlation r computed from the measurements on these players is a. 1.0. b.

Question

The correlation r computed from the measurements on these players is a. 1.0. b. positive and between 0.25 and 0.75, c. near 0. but could be either positive or negative. d. exactly 0. The correlation r would have units in a. hours. b. points. c. hours-points. d. no units. Correlation is a unit less quantity. Use the following to answer Questions 14 and 15. The volume of oxygen consumed (in liters per minute) while a person is at rest and while he or she is exercising (running on a treadmill) was measured for each of 50 subjects. The goal is to determine if the volume of oxygen consumed during aerobic can be estimated from the amount consumed at rest. The results are plotted below.

Explanation / Answer

solution:-

12)option a. 1.0

13) option d.no units. Correlation is a unitless quantity

=> Formula = Correlation(r) = NXY - (X)(Y) / Sqrt([NX2- (X)2][NY2- (Y)2])

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