Trigonometry and precalculus
Probability and combinatorics

Probability using combinatorics

  1. Example: Probability through counting outcomes
  2. Example: All the ways you can flip a coin
  3. Getting Exactly Two Heads (Combinatorics)
  4. Probability and Combinations (part 2)
  5. Probability using Combinations
  6. Exactly Three Heads in Five Flips
  7. Example: Different ways to pick officers
  8. Example: Combinatorics and probability
  9. Example: Lottery probability
  10. Mega Millions Jackpot Probability
  11. Generalizing with Binomial Coefficients (bit advanced)
  12. Conditional Probability and Combinations
  13. Birthday Probability Problem
  14. Probability with permutations and combinations

Example: Probability through counting outcomes The probability of getting exactly 2 heads when flipping three coins. Thinking about this by visualy depicting all of the outcomes.

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Example: Probability through counting outcomes

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