Mathematics for IGCSE & O level - Statistical Diagrams (Section 4 - No. 44)
Which of the following scatter diagrams shows a strong positive correlation?
A graph showing a negative slope with points close to the line.
A graph showing a positive slope with points close to the line.
A graph with points scattered randomly.
A graph showing points that have no clear pattern.
Explicaţie
Strong positive correlation means as one quantity increases, the other also increases, and the points cluster closely around a line.