PRC-2 · Chapter 10 · Question 3 of 60
If the correlation coefficient (r) between two variables is 0.9, and a constant value of 3 is subtracted from each observation of variable Y, what will happen to the correlation coefficient?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) It will remain unchanged.
Explanation
The correlation coefficient remains completely unchanged if a constant value is subtracted from each observation of a variable.
More Correlation and Regression MCQs
- Q5Under which mathematical condition is the correlation between two variables considered to be at its strongest?
- Q6If a researcher adds 3 to each observation of X, and subtracts 5 from each observation of Y, what happens to the original correlation…
- Q7Which of the following scenarios best describes a negative correlation coefficient?
- Q8Given the mathematical data set: ∑x = 75, ∑y = 225, ∑xy = 2851, ∑x² = 625, and n = 6. If calculated, what does the resulting equation y =…
- Q9What does a correlation coefficient of exactly 0 imply about a scatter diagram?
