Probability Basics - Worksheet 9 - 8th Grade
HardCalculate simple probabilities on a scale from 0 to 1 (Hard)
27 problems · 15-20 minutes · Skills: probability, number sense, fractions
About This Worksheet
This hard-level worksheet contains 27 problems designed for 8th Grade students practicing probability basics. Hard worksheets feature challenging problems including multi-step questions, missing values, and real-world applications to push students further.
Probability provides a mathematical framework for reasoning about uncertainty. The foundational concepts here — sample space, event, complement — appear in every statistics and data science course, as well as in everyday decision-making.
- Define probability and express it as a number between 0 and 1
- Calculate the theoretical probability of simple events
- Use the complement rule P(not A) = 1 − P(A)
- List the sample space for an experiment using organized lists or tree diagrams
- Convert probabilities between fractions, decimals, and percentages
How to Solve: Worked Example
- Read the problem carefully.
- Identify what is being asked.
- Use what you know to find the answer.
- Check your work.
Answer Key
Frequently Asked Questions
How do I download this probability basics - worksheet 9 worksheet?
Click the "Download PDF / Print" button at the top of the worksheet. You can save it as a PDF or print it directly. The answer key will be on a separate page.
How do I find worksheets at different difficulty levels?
Each subtopic has 10 worksheets: Worksheets 1-3 are Easy, 4-7 are Medium, and 8-10 are Hard. Start with Easy worksheets to build confidence, then progress to harder ones.
What skills does this statistics & probability worksheet cover?
This worksheet focuses on probability, number sense, fractions. It is designed for 8th Grade students and provides structured practice through varied problem types with a worked example to guide students before they begin.
Can I use this worksheet in my classroom?
Yes. All worksheets on K12Worksheets are free for classroom use. You can print copies for your entire class. With 10 worksheets per subtopic at three difficulty levels, you have plenty of options for differentiated instruction and individualized practice.
How many problems are on this worksheet?
This worksheet contains 27 problems. It typically takes 15-20 minutes to complete. An answer key with all solutions is included so parents and teachers can check work quickly.