Most Likely Sum
Written by Adi Ackerman, Head Teacher
"Most Likely Sum" is written for 8th Grade (Ages 13-14). A 7th grader who is already steady on probability can use it too, and an older student can use it as a short review.
8th grade math worksheet: complete sum tables for 6 spinner pairs with repeats, then find the most likely sum and its probability. Answer key included. Part of our compound events probability collection.
How do I use this worksheet?
Teach sample spaces first, then counting outcomes and sums. Save the compound probability sheets for last and use the riddle, maze and game board as reviews.
What students will practice
- Students will complete a table of sums for two spinners with repeated numbers.
- Students will find the most likely sum.
- Students will write the probability of the most likely sum as a fraction in simplest form.
Curriculum Links
Find this in the curriculum
Browse the grade, subject, and topic this belongs to.
FAQ
How do I use this compound events worksheet?
⌄
Teach sample spaces first, then counting outcomes and sums. Save the compound probability sheets for last and use the riddle, maze and game board as reviews.
What does this worksheet teach?
⌄
Complete sum tables for 6 spinner pairs with repeats, then find the most likely sum and its probability. The directions on the page read: Spinners A and B have equal sections with the numbers shown. Complete the table of sums. Write the most likely sum and its probability P as a fraction in simplest form. The page opens with a worked example, and an answer key is included.
Can I use this compound events worksheet for homeschool or classroom?
⌄
Yes, both. We made it for 8th grade probability, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.
What is a sample space?
⌄
A sample space is the list of every possible outcome. For picking a sock G or W and a cap 1, 2 or 3, it is G1, G2, G3, W1, W2 and W3.
How do you count outcomes of a compound event?
⌄
Multiply the number of choices at each stage. A 5 part spinner spun 3 times gives 5 times 5 times 5, or 125 outcomes.
Why is 7 the most common sum of two number cubes?
⌄
Six of the 36 outcomes give a sum of 7, more than any other sum. Students fill in a table of sums to see this and use it on the Sums Game Board.
Are answer keys included for these sheets?
⌄
Yes. Each of the 20 compound events sheets comes with an answer key.
Ratings & Reviews
No reviews yet. Be the first to share what you think.
Reviews are for ClassWeekly members.
Make a Request
Spotted something to fix, or want a worksheet we don't have yet? Tell us and we'll make it.
Worksheet Details
| Grade | 8th Grade |
| Subject | Math |
| Topic | Probability |
| Pages | 1 page |
| Difficulty | Medium |
What is ClassWeekly?
ClassWeekly offers free worksheets and printable learning resources for kids, from preschool up. All worksheets are aligned to Common Core, NGSS, and C3 Framework standards and designed by educators. Become a member to access the full library and download unlimited PDFs.