Decision Trees Quiz
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Questions and Answers

What is the purpose of a decision tree?

  • To output a yes/no decision based on input properties (correct)
  • To calculate the probability of different outcomes
  • To list all possible decisions for a situation
  • To rank the importance of input properties
  • In the context of a restaurant, what does the 'Patrons' variable represent?

  • Number of tables in the restaurant
  • Frequency of visits by regular customers
  • Number of people in the restaurant (None, Some, Full) (correct)
  • Age group of the people in the restaurant
  • What does the 'Reservation' variable indicate in the decision tree for a restaurant?

  • Whether a reservation was made (correct)
  • Availability of reservations for large groups
  • Whether the restaurant accepts reservations
  • Time taken for making a reservation
  • Which variable in the decision tree represents the kind of cuisine offered by the restaurant?

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

    What does the 'WaitEstimate' variable indicate in the decision tree?

    <p>Estimated wait time for a table (0-10 mins, 10-30, 30-60, &gt;60)</p> Signup and view all the answers

    What are the potential variables that could affect the decision on whether to wait for a table at a restaurant?

    <p>Alternate, Lounge, Fri/Sat, Hungry, Patrons, Price, Raining, Reservation, Type, WaitEstimate</p> Signup and view all the answers

    What is the purpose of a decision tree in the context of decision making based on information?

    <p>A decision tree takes as input an object or situation described by a set of properties, and outputs a yes/no 'decision'.</p> Signup and view all the answers

    How is the 'Patrons' variable defined in the decision tree for a restaurant?

    <p>It represents the number of people in the restaurant categorized as None, Some, or Full.</p> Signup and view all the answers

    What does the 'Type' variable indicate in the decision tree for a restaurant?

    <p>It represents the kind of restaurant, such as Indian, Chinese, Thai, or Fastfood.</p> Signup and view all the answers

    What does the 'WaitEstimate' variable indicate in the decision tree for a restaurant?

    <p>It indicates the estimated wait time, categorized as 0-10 mins, 10-30 mins, 30-60 mins, or more than 60 mins.</p> Signup and view all the answers

    Study Notes

    Decision Tree Purpose

    • Decision trees help visualize and understand complex decisions by breaking them down into simpler steps.
    • They represent a series of choices and their possible outcomes, helping to identify the best path based on available information

    Restaurant Decision Tree Variables

    • Patrons: Represents the number of people currently waiting for a table at the restaurant.
    • Reservation: Indicates whether a customer has a pre-booked table at the restaurant.
    • Type: Represents the type of cuisine offered by the restaurant, for example, Italian, Mexican, or Asian.
    • WaitEstimate: Indicates the estimated waiting time for a table at the restaurant.

    Factors Influencing Wait Decision

    • Patrons: The number of people waiting can influence the decision to wait or find another restaurant.
    • Reservation: Having a reservation eliminates the wait time, making it a significant variable for decision making.
    • Type: The type of cuisine desired can influence the decision, as customers might be willing to wait longer for a specific type of food.
    • WaitEstimate: The estimated waiting time is a crucial factor, as customers typically consider their time constraint while making the decision.

    Decision Tree for Restaurant Decisions

    • The decision tree uses the above variables to guide customers through the process of deciding whether to wait for a table based on the current situation at the restaurant.
    • This helps predict the potential outcomes of waiting, enabling customers to make informed decisions.

    Variable Definitions

    • Patrons: This variable represents the number of people currently waiting for a table at the restaurant.
    • Type: This variable indicates the kind of cuisine offered by the restaurant, for example, Italian, Mexican, or Asian.
    • WaitEstimate: This variable indicates the estimated waiting time for a table at the restaurant, providing customers with an idea of how long they might have to wait.

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    Description

    Test your knowledge of decision trees and their application in decision making with this quiz from the Indian Institute of Technology Kharagpur. Explore how decision trees process input data to generate decisions and understand the variables that influence decision-making processes. This quiz is ideal for students of computer science and engineering, offering insights into the practical applications of decision trees.

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