16.7 Quick review questions

• Suppose Event A is defined as ‘I will roll a or a on a fair die.’

1. What is the best way to compute the probability of Event A occurring?
   The classical approach The relative frequency approach The subjective approach
2. What is the probability of Event A occurring?
   1/6 2/6 1/5 2/5 5/2 5/1
3. Suppose Event B is defined as ‘A randomly-chosen university student will like pizza.’ What is the best way to compute the probability of Event B occurring?
   The classical approach The relative frequency approach The subjective approach
4. True or false: Events A and Event B are independent.
   TRUE FALSE

• Consider these three events, then answer the questions that follow:
  • Event 1 is ‘The first card I pick from a standard 52-card pack will be an Ace’;
  • Event 2 is ‘The second card I pick from a standard 52-card pack will be an Ace, if I do not return the first card’; and
  • Event 3 is ‘The second card I pick from a standard 52-card pack is an Ace, if I do return the first card to a random location.’

5. True or false: Event 1 and Event 2 are independent.
   TRUE FALSE

6. True or false: Event 1 and Event 3 are independent.
   TRUE FALSE

7. The probability of Event 2 is:
   1/52 1/51 4/52 4/51 3/52 3/51

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Copyright © Peter K. Dunn, 2021