a-study-was-conducted-where-the-number-of-hours-students-spent-studying-was-reco

Question

A study was conducted where the number of hours students spent studying was recorded and paired with their scores on a mathematics test. In this sample of paired data, what do r and �� (rho) represent?

Accepted Answer

r represents the sample correlation coefficient, measuring the linear relationship between study hours and test scores in the sample, while �� is the population correlation coefficient, describing the same relationship for all students.

Answer

r represents the relationship between study hours and test scores for the entire population, while �� describes only the sample.

Answer

r measures the probability of getting a high test score given study hours, while �� measures the probability of getting a low score.

Answer

r and �� both describe causation, proving that studying more directly causes higher scores.

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A study was conducted where the number of hours students spent studying was recorded and paired with their scores on a mathematics test. In this sample of paired data, what do r and �� (rho) represent?

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