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Chapter 4.5

Chapter 4.5. Probability and Counting Rules. Four Aces. Find the probability of getting four aces when five cards are drawn from an ordinary deck of cards. Defective transistors.

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Chapter 4.5

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  1. Chapter 4.5 Probability and Counting Rules

  2. Four Aces • Find the probability of getting four aces when five cards are drawn from an ordinary deck of cards.

  3. Defective transistors • A box contains 24 transistors, four of which are defective. If four are sold at random, find the following probabilities: • Exactly two are defective • None are defective • All are defective • At least one is defective

  4. Magazines • A store has six TV Graphic magazines and eight Newstime magazines on the counter. If two customers purchased a magazine, find the probability that one of each magazine was purchased.

  5. Combination lock • A combination lock consists of the twenty six letters of the alphabet. If a three letter combination is needed, find the probability that the combination of the letters ABC in that order. The same letter can be used more than once. (Note: a combination lock is really a permutation lock)

  6. Tennis Tournament • There are eight married couples in a tennis club. If one man and one woman are selected at random to plan the summer tournament, find the probability that they are married to each other.

  7. Applying the concepts • Pg. 247 #1-8

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