PRC-2 · Chapter 10 · Question 13 of 60
If the Pearson correlation coefficient between two variables is calculated as +1.25, what conclusion should be drawn?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) A calculation error has occurred.
Explanation
Because the absolute mathematical range for any valid correlation coefficient lies strictly between -1 and +1, a result of +1.25 is impossible and indicates a mathematical calculation error.
More Correlation and Regression MCQs
- Q15When constructing a simple scatter diagram, on which axis is the independent variable (x) traditionally plotted?
- Q16In basic probability theory, if two events A and B are considered 'mutually exclusive', what is the mathematical probability of them both…
- Q17A fair six-sided die is rolled. What is the precise probability of rolling a number that is strictly greater than 4?
- Q18If the probability of a specific event occurring (P) is 0.25, what is the mathematical probability of that event NOT occurring?
- Q19Two fair coins are tossed simultaneously. What is the exact probability of both coins landing on 'Heads'?