Discussing multivariate analysis using the Titanic dataset

On April 15, 1912, the largest passenger liner ever made at the time collided with an iceberg during her maiden voyage. When the Titanic sank, it killed 1,502 out of 2,224 passengers and crew. The titanic.csv (https://web.stanford.edu/class/archive/cs/cs109/cs109.1166/stuff/titanic.csv) file contains data for 887 real Titanic passengers. Each row represents one person. The columns describe different attributes about the person in the ship where the PassengerId column is a unique ID of the passenger, Survived is the number that survived (1) or died (0), Pclass is the passenger's class (that is, first, second, or third), Name is the passenger's name, Sex is the passenger's sex, Age is the passenger's age, Siblings/Spouses Aboard is the number of siblings/spouses aboard the Titanic, Parents/Children Aboard...