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Grade 7 Math Lab: The Algebraic Pivot FREE

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Probability

45 min Grade 7 Math Lab: The Algebraic Pivot

Learning Objectives

  • Calculate simple probabilities
  • Understand experimental vs theoretical
  • Use sample spaces

Key Concepts

Probability

P(event) = favorable outcomes / total outcomes

Sample Space

Set of all possible outcomes

Theory

**Probability:** P(A) = number of favorable outcomes / total outcomes **Range:** 0 ≤ P(A) ≤ 1 - P = 0: Impossible - P = 1: Certain **Complement:** P(not A) = 1 - P(A) **Experimental probability:** Based on actual trials **Theoretical probability:** Based on expected outcomes

Examples

P(heads) on fair coin

Solution: 1/2 = 0.5 = 50%