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Cambridge IGCSE Statistics practice

What does the 'm' represent in the equation y = mx + c?

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Show answerBivariate distributions revisionRevise the key idea

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MCQ

Type

cambridge_mcq

Style

Topic

Bivariate distributions

Exam-style question

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What does the 'm' represent in the equation y = mx + c?.

  1. A.The y-intercept
  2. B.The gradient (slope)
  3. C.The value of y when x = 0
  4. D.The correlation coefficient

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Paper 1 structured question: Bivariate distributions

Paper 1Statistical Techniques3 marks

Data Table

Study Hours and Test Marks

Data collected by the student

Hours studied (x)Marks scored (y)
150
255
365
470
575
  1. a

    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.

    [3]