Counting Outcomes in Lunch Decisions
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Questions and Answers

How many different possible lunches can be made according to the described choices?

  • 12
  • 15
  • 18 (correct)
  • 21

What is defined as a single occurrence or decision with a distinct set of possible outcomes?

  • Sample space
  • Sample point
  • Event (correct)
  • Decision node

What term refers to all possible outcomes for a single event?

  • Sample space (correct)
  • Outcome set
  • Event catalog
  • Probable outcomes

In the example provided, how many entree options are available for each salad option?

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

What mathematical principle is being used to calculate the total number of lunch combinations?

<p>Multiplication principle (C)</p> Signup and view all the answers

What are the individual possible outcomes in a sample space called?

<p>Sample points (A)</p> Signup and view all the answers

How many drinks are offered in the lunch special example?

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

In assessing whether an item from a garden is a fruit or vegetable, what is the size of the sample space?

<p>Two possible outcomes (D)</p> Signup and view all the answers

What does the Fundamental Counting Principle allow us to determine?

<p>The total number of outcomes across multiple events (C)</p> Signup and view all the answers

In the lunch example, how many sample points were there for the salad selection?

<p>2 (C)</p> Signup and view all the answers

How many revolutions could a student choose from for their history project?

<p>3 (D)</p> Signup and view all the answers

What are the two presentation options available for the project?

<p>Digital presentation or live presentation (A)</p> Signup and view all the answers

If a student chooses the American Revolution and a live presentation, how many project choices do they still have?

<p>3 (C)</p> Signup and view all the answers

What is the total number of possible lunch combinations calculated from the given drink, salad, and entree choices?

<p>18 (C)</p> Signup and view all the answers

Why might the sample space become larger when determining types of fruits and vegetables in a garden?

<p>There are limitless types of fruits and vegetables (A)</p> Signup and view all the answers

Flashcards

Fundamental Counting Principle

The Fundamental Counting Principle states that if you have multiple events, you can find the total number of possible outcomes by multiplying the number of possibilities for each event.

Sample Space

A sample space is a list of all the possible outcomes of an event.

Event

An event is a specific outcome or set of outcomes in a sample space.

Sample Point

A sample point is a single outcome within a sample space.

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Total Possible Outcomes

The total number of possible outcomes in a situation is calculated by multiplying the number of possibilities for each event.

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Number of Possibilities

The number of possibilities for each event represents the number of choices available for that step.

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Applying the Fundamental Counting Principle

When applying the Fundamental Counting Principle, you need to identify the events and the number of possibilities for each event.

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Dependent Events

A series of events where the outcome of each event affects the possible outcomes of the following events.

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Independent Events

A series of events where the outcome of one event does not affect the possible outcomes of the following events.

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Conditional Probability

The probability of event B occurring, given that event A has already occurred.

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Joint Probability

The probability of two or more events happening at the same time.

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Study Notes

Counting Outcomes

  • Choices are numerous in daily life, even in simple decisions like lunch.
  • The fundamental counting principle helps determine total outcomes for multiple decisions.

Lunch Example

  • Consider a restaurant lunch special: drink (soda, tea, lemonade), salad (garden, Caesar), entree (pasta, chicken, meatloaf).
  • Each drink choice leads to two salad options.
  • Each salad choice leads to three entree options.
  • Drink choices (3), multiplied by salad choices (2), multiplied by entree choices (3), equals 18 possible lunches (3 x 2 x 3 = 18).

Vocabulary

  • Event: A single decision with distinct possible outcomes (e.g., choosing a drink).
  • Sample Space: The complete set of possible outcomes for a single event (e.g., soda, tea, lemonade for a drink event).
  • Sample Points: Individual outcomes within a sample space (e.g., soda is a sample point).
  • Sample spaces vary in size based on the number of possible outcomes.

Fundamental Counting Principle

  • The fundamental counting principle states that to find total outcomes for multiple events, multiply together the numbers of sample points in each event.
  • This applies to any situation involving multiple choices.
  • In the lunch example, the principle yielded 18 possible lunches (3 drinks * 2 salads * 3 entrees = 18).

Applying the Principle

  • Example: History project options: American, French, or Chinese Revolution; research paper or digital presentation; recorded or live presentation.
  • Options: 3 revolutions, 2 project formats, 2 presentation styles.
  • Total project options: 3 x 2 x 2 = 12.

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Description

Explore the principles of counting outcomes in decisions using a lunch scenario. This quiz will help you understand the fundamental counting principle and concepts like events, sample space, and sample points. Test your comprehension of how choices can be multiplied to determine total outcomes.

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