The nature of statistics — A/L Combined Mathematics

How do I practise The nature of statistics?

1 question with a worked solution

Check before you answer: Class Boundary Conversion: Converting discrete class limits (e.g., 10-19, 20-29) into continuous class boundaries (9.5-19.5, 19.5-29.5) before plotting histograms.

1. Which of the following variables in statistical data collection is correctly classified as a discrete quantitative variable?
   1. A) The height of a competitor measured in meters
   2. B) The eye color of an applicant
   3. C) The number of students present in a classroom
   4. D) The body temperature of a patient measured in °C
   Check my answer

   Correct answer: C) The number of students present in a classroom

   A discrete quantitative variable takes distinct, separated count values (non-negative integers, e.g., number of students). Temperature and height are continuous variables (can assume any value in a continuum), while eye color is a qualitative (categorical) variable.

   Show worked solution

   Step 1: Discrete variables represent countable integer values. Step 2: Number of students = discrete quantitative. Answer: The number of students present in a classroom.
   Modelled on: the A/L Combined Mathematics examination pattern

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Where does The nature of statistics fit in the syllabus?

Year 2 · Term 3