Multiple Choice
A __________ correlation coefficient means that decreases in X are associated with decreases in Y; a __________ correlation coefficient means that decreases in X are associated with increases in Y.
A) positive; negative
B) zero; negative
C) negative; positive
D) positive; zero
Correct Answer:
Verified
Correct Answer:
Verified
Q2: In a scatter diagram, the more tightly
Q3: A graph that can be used to
Q4: Another name for the product-moment correlation is
Q5: The product-moment (Pearson r) correlation coefficient is
Q6: Dummy coding is often used to quantify
Q8: Charles finds that the correlation coefficients between
Q9: The correlation computed on two data sets
Q10: What are the four types of correlation
Q11: With _ variables, one can imagine that
Q12: If one wanted to assess the magnitude