Cambridge IGCSE Statistics practice

Paper 1 structured question: Transformations of data sets

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Paper

Marks

Topic

Transformations of data sets

Exam-style question

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Paper 1Statistical Techniques2 marks

A dataset contains the heights of students in a class. The mean height is 160 cm with a standard deviation of 10 cm.

Description

The dataset includes the heights of students in a class, with a mean of 160 cm and a standard deviation of 10 cm.

a
Calculate Calculate the z-score for a student with a height of 170 cm.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Paper 1Statistical Techniques2 marks

Description

The dataset includes exam scores with a mean of 75 and a standard deviation of 5.

a
Calculate Calculate the z-score for a score of 85.
Your answer
Aim for approximately 2 distinct marking points.
[2]