Higher June 2025 Paper 4 Q4

OCRHigherCurrent spec4 marksScatter Diagrams & Correlation

4

(a) Describe the correlation shown in each of these scatter diagrams. [2]
Three scatter diagrams: the first with points going down from left to right, the second with points scattered with no pattern, the third with points going up from left to right
(b) A theatre records the number of seats sold and the profit made for 10 performances.
The scatter diagram shows these results.
Scatter diagram on a grid: number of seats sold from 100 to 400 across, profit in pounds from 0 to 200 up; 10 points rising from about (170, 15) to about (385, 190)

By drawing a line of best fit, estimate the profit made when 250 seats are sold. [2]

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