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7 marksCorrelation and Linear Regression - Bivariate Data

CAPE Applied Mathematics Unit 1 · 2022 · Paper 2 · Question 6(g)

On the grid provided on page 27, plot a scatter diagram to represent the information in the table. Draw the regression line on the same grid.

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Other parts of this question

  1. 6(a)Calculate the gradient of the regression line y on x.[4 marks]
  2. 6(b)Calculate the intercept of the regression line.[4 marks]
  3. 6(c)Interpret the value of the gradient in the context of the data.[2 marks]
  4. 6(d)Using the obtained regression equation (y = a + bx), determine the score of an athlete who trained 64 hours for the competition.[2 marks]
  5. 6(e)Calculate the correlation coefficient.[3 marks]
  6. 6(f)Interpret the value of the correlation coefficient calculated in (e).[3 marks]

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