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 (B)</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 (D)</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 (C)</p> Signup and view all the answers

What is an event in the context of probability?

<p>A set of outcomes (C)</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 (A)</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 (C)</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 (B)</p> Signup and view all the answers

Can an event contain only one outcome?

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

What is true about the outcomes of an experiment?

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

What is the range of values for measuring probability?

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

What does a probability of 0 represent?

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

What are two events that cannot occur simultaneously called?

<p>Mutually exclusive events (A)</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 (B)</p> Signup and view all the answers

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

<p>Classical approach (B)</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 (A)</p> Signup and view all the answers

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