Titanic Presentation

Titanic Dataset

Misha Cox

INTRODUCTION

  • This is an introduction to creating presentation output using Quarto
  • Notice how headers are used to create pages of content
  • This is just a simple example - we will improve on the design and flow throughout the semester
  • Use the CRISP-DM Model to create a relevant story line
    Image: Crisp-DM

Data Understanding

  • We will use the Titanic dataset for our analysis
  • The dataset has information on all 1309 passengers aboard the Titanic when it sank in April 1912
  • The dataset has the following variables
'data.frame':   1309 obs. of  12 variables:
 $ PassengerId: int  1 2 3 4 5 6 7 8 9 10 ...
 $ Survived   : int  0 1 1 1 0 0 0 0 1 1 ...
 $ Pclass     : int  3 1 3 1 3 3 1 3 3 2 ...
 $ Name       : chr  "Braund, Mr. Owen Harris" "Cumings, Mrs. John Bradley (Florence Briggs Thayer)" "Heikkinen, Miss. Laina" "Futrelle, Mrs. Jacques Heath (Lily May Peel)" ...
 $ Sex        : chr  "male" "female" "female" "female" ...
 $ Age        : num  22 38 26 35 35 NA 54 2 27 14 ...
 $ SibSp      : int  1 1 0 1 0 0 0 3 0 1 ...
 $ Parch      : int  0 0 0 0 0 0 0 1 2 0 ...
 $ Ticket     : chr  "A/5 21171" "PC 17599" "STON/O2. 3101282" "113803" ...
 $ Fare       : num  7.25 71.28 7.92 53.1 8.05 ...
 $ Cabin      : chr  "" "C85" "" "C123" ...
 $ Embarked   : chr  "S" "C" "S" "S" ...

Passenger Statistics by Gender

  • The Titanic had more men than women – almost two-thirds were men.

female   male 
   466    843
  • Percent distribution by gender

female   male 
  35.6   64.4

Passenger Statistics by Survival

  • These data show that fewer passengers survive than did not survive.
  • However, there are quite a few passengers for whom no survival information is available.

Did Not Survive        Survived          Unsure 
            549             342             418
  • Percent distribution by survival

Did Not Survive        Survived          Unsure 
           41.9            26.1            31.9

Passenger Statistics by Gender and Survival

  • About half of the women are known to have survived
  • While over half of the men are known to have perished
Cross-Tabulation, Row Proportions  
Sex * Survived.f  
Data Frame: titanic  

-------- ------------ ----------------- ------------- ------------- ---------------
           Survived.f   Did Not Survive      Survived        Unsure           Total
     Sex                                                                           
  female                     81 (17.4%)   233 (50.0%)   152 (32.6%)    466 (100.0%)
    male                    468 (55.5%)   109 (12.9%)   266 (31.6%)    843 (100.0%)
   Total                    549 (41.9%)   342 (26.1%)   418 (31.9%)   1309 (100.0%)
-------- ------------ ----------------- ------------- ------------- ---------------

Passenger Statistics by Gender and Survival

  • Most of the non-survivors were men while most of the survivors were women.
Cross-Tabulation, Column Proportions  
Sex * Survived.f  
Data Frame: titanic  

-------- ------------ ----------------- -------------- -------------- ---------------
           Survived.f   Did Not Survive       Survived         Unsure           Total
     Sex                                                                             
  female                    81 ( 14.8%)   233 ( 68.1%)   152 ( 36.4%)    466 ( 35.6%)
    male                   468 ( 85.2%)   109 ( 31.9%)   266 ( 63.6%)    843 ( 64.4%)
   Total                   549 (100.0%)   342 (100.0%)   418 (100.0%)   1309 (100.0%)
-------- ------------ ----------------- -------------- -------------- ---------------

Average Age by Gender

  • The average age of passengers on board the Titanic is 30
  • The average age of female passengers is 29
  • The average age of male passengers is 31

Average Age by Survival

Survivors tended to be younger than those who did not survive.

Survived Average Age
Did Not Survive 31
Survived 28
Unsure 30

Average Age by Gender and Survival

Non-surviving females are younger than surviving females. The opposite is true among males.
The youngest group are female non-survivors.

Gender Survived Average Age
female Did Not Survive 25
female Survived 29
female Unsure 30
male Did Not Survive 32
male Survived 27
male Unsure 30

Average Age by Fare Class and Survival

  • Passengers booked fares in First, Second, or Third class
  • First class passengers tended to be older, regardless of survival status
Survived Fare Class Average Age
Did Not Survive 1 44
Did Not Survive 2 34
Did Not Survive 3 27
Survived 1 35
Survived 2 26
Survived 3 21
Unsure 1 41
Unsure 2 29
Unsure 3 24

Average Age by Fare Class, Gender, and Survival

Among males, those who did not survive tended to be older than survivors, regardless of fare class.
Among females, first class passengers who did not survive were younger than survivors.

Passenger’s Class and Embarkment Location

Note that passengers embarked at one of three locations.
S: Southampton, England
C: Cherbourg, France
Q: Queenstown, Ireland

  • More males than females were on the Titanic
  • A majority of both males and females on the Titanic came from Southampton
  • Only 2 females were unknown in their embarkment location

Passenger’s Class and Embarkment Location

  • A decent amount of passengers that did not survive or presumed dead were from Southampton
  • It is unknown where the two people who survived embarked on their trip.

Distribution of Class by Embark Location and Gender

  • Most of the first class females came from Cherbourg France and the first class males came from Southampton England
  • In the first class there are about equal male and female ratio whereas in the second and third class there are more males and females.
  • A little over half of the males in the third class from came from Southampton

Distribution of Survival by Embark Location and Gender

  • Most of the males in all three classes did not survive but there were more males in the second and third class that did not survive.
  • There were very few females in the first and second class that did not survive.