Probability of One Event
Written by Adi Ackerman, Head Teacher
"Probability of One Event" is written for 6th Grade (Ages 11-12). If your student is a year younger but already steady on probability, the page still works. You may just need to read the instructions out loud. And if they are older and simple probability never quite stuck, this is a short review rather than busywork.
6th grade math worksheet: find probabilities in simplest form from a number spinner, a color spinner, marbles and BANANAS cards. Answer key included. Part of our simple probability collection.
How do I use this worksheet?
Use Probability of One Event and Probability From Spinners first, then Probability of an Event Not Happening. Probability Maze and Simple and Opposite Events Review work well as a check at the end.
What students will practice
- Students will find the probability of one event as a fraction in simplest form.
- Students will use a number spinner, a color spinner, marbles and letter cards.
- Students will find the probability of an outcome not happening or of either of two outcomes.
Curriculum Links
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FAQ
How do I use this simple probability worksheet?
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Use Probability of One Event and Probability From Spinners first, then Probability of an Event Not Happening. Probability Maze and Simple and Opposite Events Review work well as a check at the end.
What does this worksheet teach?
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Find probabilities in simplest form from a number spinner, a color spinner, marbles and BANANAS cards. The directions on the page read: Spinner parts are equal. Use each picture for one spin or pick. Find each probability as a fraction in simplest form. On the marbles and the color spinner, R is red, B blue, G green and Y yellow. The page opens with a worked example, and an answer key is included.
Can I use this simple probability worksheet for homeschool or classroom?
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Yes, both. We made it for 6th Grade probability, and the page works the same whether it lands on a kitchen table or a center rotation. At home, most families go through it together and talk the answers out loud, and that talking is where most of the learning happens with simple probability. In class it runs well as independent work while you pull a small group. Print one copy or thirty, whichever the day needs.
How do you find the probability of an event not happening?
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Subtract the probability of the event from 1. If P(hail) is 2/9, then P(not hail) is 1 minus 2/9, or 7/9.
What is an opposite event?
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The opposite of an event is that event not happening. An event and its opposite have probabilities that add to 1, such as P(A) = 1/7 and P(not A) = 6/7.
How do you find a probability on a spinner?
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Count the equal parts that match the event and divide by the total number of parts. A spinner numbered 1 to 11 has 5 even parts, so P(even) is 5/11.
Do these worksheets have answer keys?
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Yes. All 10 worksheets in this group have answer keys.
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Worksheet Details
| Grade | 6th Grade |
| Subject | Math |
| Topic | Probability |
| Pages | 1 page |
| Difficulty | Medium |
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