ITPEC IP April 2023 Question 66
ITPEC IP April 2023 — Question 66 of 100
Scatter plot (b) shows negative correlation because total sales tend to decrease as temperature increases. Its points form a clear downward pattern from upper left to lower right. Negative correlation describes variables that generally move in opposite directions; it does not necessarily prove that one causes the other.
Answer (b)
Why not others:
- (a) slopes upward and shows positive correlation
- (c) is roughly horizontal and shows little or no linear relationship
- (d) is widely scattered without a clear directional trend
Key rule: Upward trend means positive correlation, downward trend means negative correlation, and no consistent trend means weak or no correlation.
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