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Math 2 Module 9: Probability

1.1 Ready, Set, Go!

Questions 1 - 4

This video works through similar Venn Diagram probability questions: https://www.youtube.com/watch?v=j4lGgBu_I4g

Questions 5 - 9

This video goes through the properties of Venn diagrams and uses examples to explain them: https://www.youtube.com/watch?v=uR70knMr2Hg

This video shows you how to use a Venn diagram to solve for unknown values: https://www.youtube.com/watch?v=OG045QBuUrg

Questions 10 - 14

This video works through a similar example with a tree diagram: https://www.youtube.com/watch?v=hxEdXUB_IdQ

Question 15, 17, 18, 20, 21

Check out this video to go over the principles of probability and a few similar probability questions: https://www.youtube.com/watch?v=KzfWUEJjG18

Question 16, 19

This video talks about probability applied to a deck of cards: https://www.youtube.com/watch?v=obZzOq_wSCg

9.2 Ready, Set, Go!

Questions 1 - 10

This video works through similar Venn Diagram questions: https://www.youtube.com/watch?v=j4lGgBu_I4g

Questions 11 - 12

This video shows you how to set up and use a two-way table: https://www.youtube.com/watch?v=kgs2Jzb_dwM

Question 13

This video shows you how to calculate probabilities when you're given a two-way table: https://www.youtube.com/watch?v=kQyVngvQMY8

Question 14

This is a great lesson on 2-way tables, Venn diagrams and tree diagrams: https://www.youtube.com/watch?v=cdG5BDqCWM4

Questions 15 - 17

This video shows you how to find a fraction of a fraction: https://www.youtube.com/watch?v=JdEj-SS6eJU

Question 18

This video shows you how to convert from fractions to percentages: https://www.youtube.com/watch?v=QrtTyx4HBuc

Question 19 - 20

This video shows you how to quickly find any percentage of any number: https://www.youtube.com/watch?v=ZIpg0N43wRI

Questions 21 - 22

This video shows you how to convert from fractions to percentages: https://www.youtube.com/watch?v=QrtTyx4HBuc

Questions 23 - 26

This video shows you how to quickly find any percentage of any number: https://www.youtube.com/watch?v=ZIpg0N43wRI

9.3 Ready, Set, Go!

Questions 1 - 5

This video explains the difference between independent and dependent events: https://www.youtube.com/watch?v=yi97YB8EyDg

Questions 6 - 7

This video introduces the addition rule for probability and draws the correct Venn diagram for P(A or B): https://www.youtube.com/watch?v=QE2uR6Z-NcU

Questions 8 - 15

This video works through similar probability problems using 2-way tables, Venn diagrams and tree diagrams: https://www.youtube.com/watch?v=cdG5BDqCWM4

Questions 16 - 18

This video shows you how to take worded problems and set up proportions that you can solve to get your answer: https://www.youtube.com/watch?v=96ZEmUbnuU8

9.4 Ready, Set, Go!

Questions 1 - 6

This video shows you how to multiply and divide fractions with other fractions: https://www.youtube.com/watch?v=T3D9z6lUldM

Questions 7 - 8

This video reviews the rules of multiplying probabilities: https://www.youtube.com/watch?v=uvU4A2u_pAc

Because these probabilities are expressed as fractions, multiplying them is as easy as multiplying the fractions: https://www.youtube.com/watch?v=T3D9z6lUldM

Questions 9 - 11

This video works through similar probability problems using 2-way tables, Venn diagrams and tree diagrams: https://www.youtube.com/watch?v=cdG5BDqCWM4

Question 12 - 14

A conditional statement always has the "If" and "Then" structure. Follow the examples in this video to see how to write conditional statements: https://www.youtube.com/watch?v=Kf3mZggwEaY

This video shows you how to calculate probabilities when you're given a two-way table: https://www.youtube.com/watch?v=kQyVngvQMY8

9.5 Ready, Set, Go!

Questions 1 - 7

Check out this video to learn about quadratics and how to find their intercepts, vertices, and lines of symmetry: https://www.youtube.com/watch?v=JpUanT9y4mw

Questions 7 - 10

Events A and B are independent if
P(A and B) = P(A) ∙ P(B)
or;
P(A|B) = P(A and B) ÷ P(B) = P(A)

Substitute in the values you're given and into conditions for independence. If the conditions aren't met, then A and B must be dependent events.

Questions 11

This video shows you how to calculate probabilities when you're given a two-way table: https://www.youtube.com/watch?v=kQyVngvQMY8

9.6 Ready, Set, Go!

Questions 1 - 4

Follow this video to solve quadratic equations by factoring: https://www.youtube.com/watch?v=qeByhTF8WEw

Questions 5 - 8

This video explains how to calculate probabilities when you are given a Venn diagram: https://www.youtube.com/watch?v=ErJ2F8lWJKc

Questions 9 - 12

This video works through conditional probability problems similar to this question: https://www.youtube.com/watch?v=jQNBlJK8AIc

Questions 13 - 15

This video shows you how to calculate probabilities when you're given a two-way table and has conditional probability examples that start at 3:00: https://www.youtube.com/watch?v=kQyVngvQMY8

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