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ZIMSEC A-Level Statistics

6.1Representation of data

Representation of data in ZIMSEC A-Level Statistics: what the syllabus expects you to know, the learning objectives and how to practise.
Topic78 practice questions4 lessons
Practise this topicAll Statistics topics

Overview

Form 5.

In this topic

Lessons

  • Collecting data and statistical diagrams

    40 min

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  • Histograms and cumulative frequency graphs

    45 min

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  • Measures of central tendency and spread

    45 min

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  • Variance and standard deviation, including summary and coded data

    45 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Representation of data: sample question

1 mark

The stem-and-leaf diagram shows the masses, in kg, of 19 bales of tobacco on an auction floor in Harare. Key: 10∣410 \mid 4 means 104 kg.

Stem Leaves
8 2 5 8
9 1 3 4 6 7 9
10 1 2 4 4 6 8
11 1 3 7
12
13 2

Find the median mass.

Answer in kg.

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