please help me figure these problems out!

PLAY 2. Casualties of the Titanic In 1912 the Titanic struck an iceberg and sank on its first voyage. Some passengers got off the ship in lifeboats, but many died. The following two-way table gives information about adult passengers who survived and who died, by class of travel. Class Survived First Second Third Yes 197 94 151 No 122 167 476 a. P( First class or survived) U b. P(Third class or died) U c. P(Second class or survived) d. P(First Class I died) e. P(died | third class)