Intermediate Math
Fraction and Percent Application: Probability
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Introduction


Concept/Skill  Sample  YouTube  Learn Zillion  Khan Academy  Math Sense 3  PreGED Mathematics  GED Mathematics 
What is Probability? 
A 10% chance of snow is a low probability. That means it probably won't snow. 
Probability for Beginners: Solving Math Problems  5657  
What is probability? 
Problem Solving


Concept/Skill  Sample  YouTube  Learn Zillion  Khan Academy  Math Sense 3  PreGED Mathematics  GED Mathematics 
Probability of One Thing Happening: Simple Probability  If there are 27 books on the shelf, what is the probability you'll randomly grab a book with a blue cover if there are 6 books with blue covers? Answer: 6 out of 27 or 6 / 27 reduces to 2 / 9 which is about 22%.  ProbabilityPart One: Simple Probability  Calculating the probability of an event by creating a ratio  6465  214217  186187  
Simple Probability: nonblue marble (NOTE: Stop video at 4.53)  
Probability of Multiple Things Happening Together: Compound Probability  If a dice is rolled and a coin is flipped, what is the probability of getting a 6 on the dice and the coin landing on heads? The probability of getting a 6 is 1/6; the probability of getting a heads is 1/2. The probability of both is 1/6 x 1/2 = 1/12. The probability of both events happening is 1/12 or 8.33%.  ProbabilityPart Two: Compound Probability  Independent and Dependent Probability  6667  218219  188189  
Die rolling probability  
Probability with counting outcomes  
Compound probability of an independent event  
Die rolling probability with independent events  
Dependent probability introduction  
Dependent Probability  
Predicting with Probability  If a salesperson makes a sale on 24% of her calls, how many sales should she expect to make if she plans to make 30 calls today? Answer: About 7 (30 x .24 = 7.2)  Making predictions with probability  6869  
Probability models example: frozen yogurt  
Concept/Skill  Sample  YouTube  Learn Zillion  Khan Academy  Math Sense 3  PreGED Mathematics  GED Mathematics 

Problem Solving PostTest
1. In the Math Sense 3 book, complete pages 7273. Do NOT do problems 1, 2, 4 or 8. It is OK to use a calculator for this test. 

2. Answers can be found on pages 171172. 

3. A passing score is 8 out of 10. 