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Question 46. The Titanic data set contains information, whether passengers of the Titanic survived the shipwreck, based on their gender, age and passenger class. The following decision tree has been learned on this data. Which of the statements are true? died 0.38 100% yes sex = male no survived 0.73 36% died 0.19 64% age >= 9.5 pclass 3rd survived 0.58 3% died 0.49 17% pclass = 3rd age >= 1.5- died 0.17 died 0.38 2% survived 1.00 1% died 0.48 16% survived 0.86 1% survived 0.93 19% 61% a) Overall, 62% of the passengers in the data set died. b) A 'new' passenger (female, 3rd class, 30 years old) is predicted to die in the shipwreck. c) 62% of the passengers in the data set are female. d) All male 3rd class passengers in the data set died.

Question 46. The Titanic data set contains information, whether passengers of the Titanic survived the shipwreck, based on their gender, age and passenger class. The following decision tree has been learned on this data. Which of the statements are true? died 0.38 100% yes sex = male no survived 0.73 36% died 0.19 64% age >= 9.5 pclass 3rd survived 0.58 3% died 0.49 17% pclass = 3rd age >= 1.5- died 0.17 died 0.38 2% survived 1.00 1% died 0.48 16% survived 0.86 1% survived 0.93 19% 61% a) Overall, 62% of the passengers in the data set died. b) A 'new' passenger (female, 3rd class, 30 years old) is predicted to die in the shipwreck. c) 62% of the passengers in the data set are female. d) All male 3rd class passengers in the data set died.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question 46. The Titanic data set contains information, whether passengers of the Titanic survived the shipwreck, based on their gender, age and passenger class. The following decision tree has been learned on this data. Which of the statements are true? died 0.38 100% yes F sex = male - no died 0.19 64% survived 0.73 36% age >= 9.5 pclass = 3rd died 0.49 17% survived 0.58 3% pclass = 3rd age >= 1.5 died 0.17 61% died 0.38 2% survived 1.00 1% survived 0.86 1% died survived 0.48 16% 0.93 19% a) Overall, 62% of the passengers in the data set died. b) A 'new' passenger (female, 3rd class, 30 years old) is predicted to die in the shipwreck. c) 62% of the passengers in the data set are female. d) All male 3rd class passengers in the data set died.
Transcribed Image Text:Question 46. The Titanic data set contains information, whether passengers of the Titanic survived the shipwreck, based on their gender, age and passenger class. The following decision tree has been learned on this data. Which of the statements are true? died 0.38 100% yes F sex = male - no died 0.19 64% survived 0.73 36% age >= 9.5 pclass = 3rd died 0.49 17% survived 0.58 3% pclass = 3rd age >= 1.5 died 0.17 61% died 0.38 2% survived 1.00 1% survived 0.86 1% died survived 0.48 16% 0.93 19% a) Overall, 62% of the passengers in the data set died. b) A 'new' passenger (female, 3rd class, 30 years old) is predicted to die in the shipwreck. c) 62% of the passengers in the data set are female. d) All male 3rd class passengers in the data set died.
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