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

Comparing two data sets using measures of central tendency and dispersion.

Data Table

The table below shows the mean and standard deviation for two data sets.

Data Set	Mean	Standard Deviation
A	50	5
B	50	10

a
Compare Compare the consistency of Data Set A and Data Set B.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Paper 1Statistical Techniques1 marks

Data Table

The table below provides the mean and standard deviation for two distributions.

Distribution	Mean	Standard Deviation
X	60	8
Y	70	12

a
Compare Compare the average values of Distribution X and Distribution Y.
Your answer
Aim for approximately 1 distinct marking point.
[1]