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These are the Solution of the problems given in Titanic case Study.

titanic.df= read.csv("Titanic Data.csv")

View(titanic.df)

Question 1 Total number of passengers on board the Titanic.

Total= length(titanic.df[ ,1])
Total
## [1] 889

Question 2: Total number of passengers who survived the sinking of the Titanic.

survivor = subset(titanic.df, titanic.df$Survive == 1)
nrow(survivor)
## [1] 340

Question 3: The percentage of passengers who survived the sinking of the Titanic

Total=889
survivor= 340

percent= (340/889)*100
percent
## [1] 38.24522

Question 4: Use R to count the number of first-class passengers who survived the sinking of the Titanic

survivor_firstClass = subset(titanic.df, titanic.df$Survive == 1 & titanic.df$Pclass == 1)
(Sf = nrow(survivor_firstClass))
## [1] 134

Question 5: Use R to measure the percentage of first-class passengers who survived the sinking of the Titanic.

Total = 889
per= (134/889)*100
per
## [1] 15.07312

Question 6: Use R to count the number of females from First-Class who survived the sinking of the Titanic

survivor_firstClass_female = subset(titanic.df, titanic.df$Survive == 1 & titanic.df$Pclass == 1 & titanic.df$Sex == 'female')
nrow(survivor_firstClass_female)
## [1] 89

Question 7: Use R to measure the percentage of survivors who were female

femper=(89/889)*100
femper
## [1] 10.01125

Question 8: Use R to measure the percentage of females on board the Titanic who survived

femonboard=(89/889)*100
femonboard
## [1] 10.01125