Although correlation does not imply causation, it does imply ...

[mspears3]

Although correlation does not imply causation, it does imply _____.
 
  a. shared variation c. secondary causation
  b. that the null hypothesis is true d. equality of means

Question 2

In a race, Sam came in first and Fred second. Determining the difference in time to complete the race between Sam and Fred involves an ordinal scale
 
  Indicate whether the statement is true or false

[matt]

Answer to Question 1

A
Because squaring the value of r provides a measure of the amount of variability in one variable that can be attributed to the variability of the other variable, the variables apparently share variation.

Answer to Question 2

T