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Paper 1Statistical Techniques3 marks
A student collected data on the number of hours studied (x) and the marks scored (y) in a test for 5 students. The data points are plotted on a scatter diagram. The student draws a line of best fit through the points.
Data Table
Study Hours and Test Marks
Data collected by the student
| Hours studied (x) | Marks scored (y) |
|---|---|
| 1 | 50 |
| 2 | 55 |
| 3 | 65 |
| 4 | 70 |
| 5 | 75 |
- a[3]
Calculate the equation of the line of best fit in the form y = mx + c using the points (1, 50) and (5, 75).
Aim for approximately 3 distinct marking points.
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