Paper 1 · Research Aptitude
As the value of one variable increases, the value of the second variable also increases. The correlation coefficient will then be
APositive ✓ Correct
BNegative
CZero
DUndefined
Correct answer: (A) Positive — When both variables increase together, the correlation coefficient is positive, so that is the answer.
Explanation
★When both variables increase together, the correlation coefficient is positive, so that is the answer.
★A positive correlation means the two variables move in the same direction.
★So as one increases the other also increases, which is exactly the pattern described.
★A negative correlation would have one variable fall as the other rises.
★A zero correlation would mean no consistent relationship between them.
★The coefficient is well defined here, so both increasing together gives a positive correlation.
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