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  • High School
    • Grade 10 >
      • Grade 10 Answers
      • Algebraic Expressions
      • Algebraic Functions
      • Analytical Geometry
      • Exponents
      • Equations and Inequalities
      • Euclidean Geometry
      • Finance and Growth
      • Numbers and Patterns
      • Measurement
      • Probability
      • Statistics
      • Trigonometry
      • Trigonometric Functions
    • Grade 11 >
      • Grade 11 Answers
      • Algebraic Functions
      • Analytical Geometry
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      • Finance, Growth and Decay
      • Measurement
      • Numbers and Patterns
      • Probability
      • Statistics
      • Trigonometry
      • Trig Functions
    • Grade 12 >
      • Grade 12 Answers
      • Analytical Geometry
      • Calculus
      • Euclidean Geometry
      • Finance, Growth and Decay
      • Functions
      • Functions: Exponential and Logarithmic
      • Functions: Polynomials
      • Patterns, Sequences and Series
      • Probability
      • Statistics
      • Trigonometry

Check list:

  1. Revise and use tree diagrams and Venn diagrams to solve probability problems.
  2. The use of tree diagrams for the probability of consecutive or simultaneous events which are not necessarily independent.
  3. Revise the addition rule for mutually exclusive events: P(A or B) = P(A) + P(B).
    The complementary rule: P(not A) = 1 - P(A). 
    And the identity P(A or B) = P(A) + P(B) - P(A and B).
  4. Dependent and independent events and the product rule for independent events: P(A and B) = P(A) x P(B).

Learn the concepts:

There is a lot of terminology and notation that you need to know how to use correctly to succeed in this section. Take careful notes while going through these videos, and make sure that you will understand them when you use them as study notes later in the year. I find it easier to understand the rules if I apply them to a Venn diagram.
Videos from learn.mindset.co.za
Mind Action Series: Mathematics 11 Textbook & Workbook (2012):
Exercise 1 Page 265  (Revision on Grade 10)
Exercise 2 Page 271 (Tree Diagrams)
Exercise 3 Page 273 (Tree Diagrams)
Exercise 4 Page 278 (Venn Diagrams)
Exercise 5 Page 281 (Contingency Tables) 

Relevant sections in Everything Maths:
  • Revision
  • Dependent and independent events
  • More Venn diagrams
  • Tree diagrams
  • Contingency tables
Still want to learn more? Try these links:
  • Examples, puzzles and worksheets on probability.
  • YouTube video showing how to work out dependent and independent events.
  • This site demonstrates how to solve word problems that involve Venn diagrams.
  • Simple, easy to understand explanation of tree diagrams.
  • A probability tree calculator.
  • YouTube video that goes into the basics of contingency tables.
  • Problems that require contingency tables.

Practice the concepts:

A prerecorded lesson on Grade 11 Probability.
A live recording of a show with various probability problems.
Download this note.
Videos from learn.mindset.co.za
Mind Action Series: Mathematics 11 Textbook & Workbook (2012):
Revision Exercise Page 282  
Some Challenges Page 283 

Relevant sections in Everything Maths:
  • Summary
  • End of chapter exercises
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  • High School
    • Grade 10 >
      • Grade 10 Answers
      • Algebraic Expressions
      • Algebraic Functions
      • Analytical Geometry
      • Exponents
      • Equations and Inequalities
      • Euclidean Geometry
      • Finance and Growth
      • Numbers and Patterns
      • Measurement
      • Probability
      • Statistics
      • Trigonometry
      • Trigonometric Functions
    • Grade 11 >
      • Grade 11 Answers
      • Algebraic Functions
      • Analytical Geometry
      • Equations and Inequalities
      • Exponents and Surds
      • Euclidean Geometry
      • Finance, Growth and Decay
      • Measurement
      • Numbers and Patterns
      • Probability
      • Statistics
      • Trigonometry
      • Trig Functions
    • Grade 12 >
      • Grade 12 Answers
      • Analytical Geometry
      • Calculus
      • Euclidean Geometry
      • Finance, Growth and Decay
      • Functions
      • Functions: Exponential and Logarithmic
      • Functions: Polynomials
      • Patterns, Sequences and Series
      • Probability
      • Statistics
      • Trigonometry