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Maths•JHS Data & Probability

Data handling and averages

Junior High 6 questions
AI-drafted from platform data — specialist review scheduledBy DigiTransact Mastermind editorial teamLast updated
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What data handling and averages means

You learn how to organise data and use it to find a typical value from a set of numbers. This helps you answer questions about class results, survey figures, and simple charts with confidence.

What you will practise

  • Work out the mean by adding values and dividing by the number of items
  • Find the median after arranging numbers in order from smallest to largest
  • Identify the mode as the value that appears most often
  • Read simple charts and use the information to answer questions

Before you start

You should be comfortable with adding, dividing, and arranging numbers in order. It also helps to know how to read simple tables, pictographs, and bar charts.

Worked example

One question from this skill's own question bank, shown with its full working.

Question

Find the mean of 4, 7, 9, 12.

  • 7
  • 8
  • 9
  • 32
Answer: 8

Working: Mean = (4 + 7 + 9 + 12) ÷ 4 = 32 ÷ 4 = 8.

Common mistakes to avoid

  • Forgetting to order the numbers before finding the median. Arrange them first.
  • Adding the numbers but dividing by the wrong count. Use all the values.
  • Choosing the first repeated number instead of the one that appears most often. Count carefully.
  • Reading a chart too quickly and missing the labels or scale. Check both before answering.

Curriculum and exam alignment

Ghana GES Basic 7 to 9 syllabusBECE

This topic usually appears in Junior High School data handling work, where you practise summarising and interpreting data. It supports the type of calculation and chart-reading often tested in the BECE.

Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.

Related skills

Other JHS Data & Probability skills in Maths, at the same point in the course.

Other Maths topics

Counting with PicturesPicture Addition & SubtractionEarly NumeracyNumber BasicsSHS Core MathematicsUniversity Mathematics

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Exams that assess data handling and averages

Junior High work on this skill feeds directly into these exam papers. Each page lists the Maths topics that appear on it.

BECEBECE practice questionsFree BECE practice across the subjects at this stage, with worked answers.GESGES practice questionsFree GES practice across the subjects at this stage, with worked answers.WASSCEWASSCE practice questionsListed as a related subject on the WASSCE practice page.

How this page was produced

This text was drafted with AI assistance from the questions and topics already stored on the platform. A subject-specialist review is scheduled but has not yet been recorded, so we do not claim it here.

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6 questions with a worked answer after every attempt, and a SmartScore that tracks how close you are to mastery.

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