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Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Probability and Odds
Eight problems cover the topics of probability and odd in different settings. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to...
Other
Bowling Green St Univ: Introduction to Probability
This site from Bowling Green State University provides an introduction to probability. It discusses topics and activities such as interpreting odds, listing all possible outcomes (the sample space), basic probability rules, equally...
Khan Academy
Khan Academy: Addition Rule for Probability (Basic)
Venn diagrams and the addition rule of probability.
CK-12 Foundation
Ck 12: Probability: Sample Spaces and Events Grades 11 12
[Free Registration/Login may be required to access all resource tools.] This concept introduces the student to the basic concepts of probability, including sample spaces and events.
Texas Instruments
Texas Instruments: Numb3 Rs: A Bit of Basic Blackjack
Based off of the hit television show NUMB3RS, this lesson explores a little probability in the world of the card game Blackjack. While gambling is not mentioned or used in the lesson, students do find the probability of attaining a...
Khan Academy
Khan Academy: Probability Models
Practice creating probability models and understand what makes a valid probability model. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
University of Cambridge
University of Cambridge: Nrich: Trick or Treat
On this one page website sharpen your logic, graphing and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
National Council of Teachers of Mathematics
Nctm: Figure This: Misaddressed Mail
Try this probability challenge from the NCTM Math Challenges for Families series. See if you can figure out the probability of putting three checks in the correct envelopes without looking. Also, discover how probability skills are used...