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Cambridge IGCSE Statistics practice

In which scenario is stratified sampling most useful?

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Show answerData and its collection revisionRevise the key idea

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MCQ

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cambridge_mcq

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Topic

Data and its collection

Exam-style question

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In which scenario is stratified sampling most useful?.

  1. A.When the population is homogeneous
  2. B.When the population is diverse
  3. C.When a complete list is unavailable
  4. D.When time is limited

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Paper 1 structured question: Data and its collection

Paper 1Statistical Techniques1 marks

Description

Student Survey

The school has 400 students, divided into 4 grades: 100 in Grade 9, 100 in Grade 10, 100 in Grade 11, and 100 in Grade 12. The school decides to use stratified sampling to ensure each grade is represented.

GradeNumber of Students
Grade 9100
Grade 10100
Grade 11100
Grade 12100
  1. a

    Calculate How many students should be sampled from each grade if the school wants to survey 40 students in total?

    Aim for approximately 1 distinct marking point.

    [1]