Probability Of Single And Muiltiple Events

9 Questions | Total Attempts: 269

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Probability Of Single And Muiltiple Events - Quiz

A test of probability knowledge for Y9 students.


Questions and Answers
  • 1. 
    A probability of 1 means an outcome is:
    • A. 

      Not likely to happen

    • B. 

      Probably going to happen

    • C. 

      Absolutely certain

    • D. 

      Possibly going to happen

  • 2. 
    A card is taken at random from a pack of 52 playing cards; what is the probability that it is a Red 7?
    • A. 

      1/13

    • B. 

      1/52

    • C. 

      1/26

  • 3. 
    If you roll a fair dice 120 times how many times would you expect to get a 4?
    • A. 

      50

    • B. 

      60

    • C. 

      20

  • 4. 
    The faces of a regular tetrahedron are numbered 1 to 4. When rolled it lands face down on one of these numbers. What is the probability that this number is not 2?
    • A. 

      1/4

    • B. 

      1/2

    • C. 

      3/4

    • D. 

      1

  • 5. 
    Using the same dice as in question 5, what is the probability that the score is at least 8?
    • A. 

      1/3

    • B. 

      7/36

    • C. 

      1/4

    • D. 

      5/12

  • 6. 
    And again, with the two dice, what is the probability of a double being scored?
    • A. 

      1/3

    • B. 

      1/5

    • C. 

      1/6

    • D. 

      1/4

  • 7. 
    And finally, with the two dice, what is the probability of a score of 10 or more given that one of the dice shows a 6?
    • A. 

      1/2

    • B. 

      5/36

    • C. 

      5/11

    • D. 

      3/11

  • 8. 
    A coin is biased so that the probability of a Head is 3/5. What is the probability of getting two heads with two tosses of the coin?
    • A. 

      9/25

    • B. 

      6/25

    • C. 

      6/10

    • D. 

      4/25

  • 9. 
    Finally, with the same biased coin, with three tosses, what is the probility of at least one tail?
    • A. 

      3/5

    • B. 

      27/125

    • C. 

      98/125

    • D. 

      17/125

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