Skip to main content
DigiTransact Mastermind
Maths•JHS Data & Probability

Probability

Junior High 6 questions
AI-drafted from platform data — specialist review scheduledBy DigiTransact Mastermind editorial teamLast updated
Start practice

What probability means

You learn how to find the chance of an event as a fraction of all possible outcomes. This helps you make sense of simple chances in games, choices, and everyday situations.

What you will practise

  • Count the favourable outcomes in a simple event.
  • Count all equally likely outcomes correctly.
  • Write probability as a fraction and simplify it.
  • Find the probability of the opposite event.
  • Use data from bags, dice, coins, and weather.

Before you start

You should already be able to count small sets and compare fractions. It also helps if you understand basic words like event, outcome, and total.

Not confident yet? Work through Data handling and averages first.

Worked example

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

Question

A fair die is rolled once. What is the probability of getting a 4?

  • 1/2
  • 1/4
  • 1/6
  • 4/6
Answer: 1/6

Working: A die has 6 equally likely faces, and only one shows 4.

Common mistakes to avoid

  • Counting the wrong outcomes as favourable. Check the question and name only the matching outcomes.
  • Forgetting to count every possible outcome. Always use the full sample space in the denominator.
  • Mixing up the event with its opposite. Read carefully before using 1 minus the probability.
  • Leaving fractions unsimplified when they can reduce. Divide top and bottom by the same number.

Curriculum and exam alignment

Ghana GES Basic 7 to 9 syllabusBECE

This usually appears in Junior High School work on data and chance before learners meet exam-style questions in Basic 7 to Basic 9. It supports BECE preparation by building skill with simple fractions and interpretation of everyday probability.

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

Picture Addition & SubtractionEarly NumeracyNumber BasicsSHS Core MathematicsUniversity MathematicsAlgebra

Related study guides

Exam Preparation
How to Master WASSCE Core Mathematics: Topics, Traps and Tactics

Core Maths is compulsory and it fails more WASSCE candidates than any other paper. This guide breaks…

7 min read
Exam Preparation
How to Build a BECE Study Plan That Actually Works (2026 Guide)

The BECE decides SHS placement for every JHS graduate in Ghana. Here is a realistic, week-by-week st…

7 min read

Exams that assess probability

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.

Written by
DigiTransact Mastermind editorial team
Human review
Not yet. Subject-specialist review is scheduled; this page will say so once it has happened. See which content receives human review.
Last updated

Spotted a mistake on this page? Report a content correction and we will check it against the source. You can also read our editorial policy and how we use AI and where it falls short.

All Maths skills

Practise probability

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

Start practice