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Cambridge IGCSE Statistics practice

Paper 1 structured question: Data and its collection

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Attempt questionData and its collection revisionRevise the key idea

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Data and its collection

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Paper 1Statistical Techniques2 marks

Transport Survey

Description

Transport Survey Sampling

A survey is conducted to understand the transport preferences of students at a school. The first 10 students arriving at school are selected for the survey.

  1. a

    Comment on the potential bias introduced by this sampling method.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 1 structured question: Data and its collection

Paper 1Statistical Techniques3 marks

Description

Analysis of Transport Survey

A transport survey was conducted, but only the first 10 students arriving were surveyed. Discuss the implications of this sampling technique.

  1. a

    Explain the implications of using this sampling technique for the survey results.

    Aim for approximately 3 distinct marking points.

    [3]