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The Addition Rule Of Combinations


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The Addition Rule Of Combinations

  1. 1. THE ADDITION RULE OF COMBINATIONS You select a card from a standard deck. Find the probability that the card is a 4 or and ace.
  2. 2. Deck of 52 playing cards 44 OTHER CARDS
  3. 3. <ul><li>If the card is a 4 it cannot be an ace. So the </li></ul><ul><li>events are mutually exclusive </li></ul>
  4. 4. <ul><li>The probability of selecting a 4 or an ace is </li></ul><ul><li>P(4 or ace) = P(4) + P(ace) = 4/52 + 4/52 = 8/82 = 2/13 </li></ul><ul><li>≈ 0.154 </li></ul>