Probability Chapter 5
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Questions and Answers

What is the probability of rolling a 1 when a die is rolled?

  • 2/3
  • 1/2
  • 1/3
  • 1/6 (correct)

    • What is the formula to calculate the probability of an event occurring?

  • Total number of outcomes / Number of favorable outcomes
  • Number of favorable outcomes + Number of unfavorable outcomes
  • Number of unfavorable outcomes / Total number of outcomes
  • Number of favorable outcomes / Total number of outcomes (correct)

    • What is the probability of rolling an even number when a die is rolled?

  • 3/4
  • 2/3
  • 1/3
  • 1/2 (correct)

    • Which method of assigning probabilities involves conducting experiments and calculating the proportion of times an event occurs?

    <p>Frequentist</p> Signup and view all the answers

    What is a potential difficulty with using subjective probabilities?

    <p>They are subjective and can vary from person to person</p> Signup and view all the answers

    What is an example of using subjective probabilities in real-life?

    <p>Assigning odds to a horse race</p> Signup and view all the answers

    What is an event in the context of probability?

    <p>A set of outcomes</p> Signup and view all the answers

    What is the sample space in the context of an experiment?

    <p>The set of all possible outcomes</p> Signup and view all the answers

    Which of the following is an example of an event?

    <p>The set of all outcomes where the shoe size is less than 9</p> Signup and view all the answers

    What is the relationship between an event and an outcome?

    <p>An event is a set of outcomes</p> Signup and view all the answers

    Can an event contain only one outcome?

    <p>Yes, it is possible but not always the case</p> Signup and view all the answers

    What is true about the outcomes of an experiment?

    <p>Only one outcome can occur</p> Signup and view all the answers

    What is the range of values for measuring probability?

    <p>0 ≤ prob ≤ 1</p> Signup and view all the answers

    What does a probability of 0 represent?

    <p>An event that is impossible to happen</p> Signup and view all the answers

    What are two events that cannot occur simultaneously called?

    <p>Mutually exclusive events</p> Signup and view all the answers

    What term is used to describe events where the occurrence of one does not affect the probability of the second?

    <p>Independent events</p> Signup and view all the answers

    What approach to measuring probability assumes all possible outcomes are equally likely?

    <p>Classical approach</p> Signup and view all the answers

    How many outcomes are possible in the classical approach when tossing a fair coin?

    <p>2 possible outcomes</p> Signup and view all the answers

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