Math Forum - Problems Library - Middle School, Probability

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Middle School: Probability

In grades 6-8, students explore the difference between complementary and mutually exclusive events, and learn to use appropriate terminology to describe them. Students also learn to employ proportionality and a basic understanding of probability to explore notions of chance, make predictions, observe outcomes, and test conjectures about the results of experiments and simulations, using methods such as organized lists, tree diagrams, and area models to compute probabilities for simple compound events.

Middle School Problems of the Week that require some knowledge of probability are listed below. They address the NCTM Data Analysis and Probability Standard for Grades 6-8.

For background information elsewhere on our site, explore Middle School Probability and Statistics in the Ask Dr. Math archives; and see Probability and Probability in the Real World from the Dr. Math FAQ. For relevant sites on the Web, browse and search Probability in our Internet Mathematics Library; to find middle-school sites, go to the bottom of the page, set the searcher for middle school (6-8), and press the Search button.


Access to these problems requires a Membership.

Chamique the Archer - Mr. Marthinsen's Geometry Class
Pre-Algebra, difficulty level 3. Chamique wants to know the probability of hitting a bull's-eye with a randomly shot arrow. ... more>>

Flipping Over Pennies - Judy Ann Brown
Pre-Algebra, difficulty level 3. How many equally likely outcomes are there when flipping 10 coins? ... more>>

Golfing Luck? - Suzanne Alejandre
Pre-Algebra, difficulty level 2. Work with probability on the practice hole of the golf course. ... more>>

Student Council Elections - Judy Ann Brown
Pre-Algebra, difficulty level 4. Find the number of ways names can be arranged on the student council ballot, and figure the odds that a brother and sister will both be listed first in their respective races. ... more>>

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