Answer as requested.
-Suppose that there is perfect positive correlation between the number of hours studied for a test and score on the test. Which of the following statements must be true? More than one statement
May be true.
A: If we know the number of hours a given student studied, we will be able to perfectly predict
Their test score.
B: If Anne studied twice as long as Manuel, she will score twice as much.
C: If Lu Yi studied ten hours more than Andrea, Lu Yi will score ten points more than Andrea.
D: All data points lie perfectly on a horizontal line.
A)B and C
B)All statements are true
C)A
D)A and D

Question

Quizplus · Accepted Answer

A perfect positive correlation means that knowing the number of hours studied allows us to perfectly predict the test score, but it does not imply that the relationship between hours studied and score is linear in the way described in B and C, nor does it imply that all data points lie on a horizontal line (D), which would indicate no variation in scores regardless of study hours.

Answer as Requested. -Suppose That There Is Perfect Positive Correlation Between the Number