The contingency table below shows the survival data for the passengers of the Titanic.
| First | Second | Third | Crew | Total | |
|---|---|---|---|---|---|
| Survive | 203 | 118 | 178 | 212 | 711 |
| Not Survive | 122 | 167 | 528 | 673 | 1490 |
| Total | 325 | 285 | 706 | 885 | 2201 |
What is the probability that a passenger did not survive?
What is the probability that a passenger was crew?
What is the probability that a passenger was first class and did not survive?
What is the probability that a passenger did not survive or was crew?
What is the probability that a passenger survived given they were first class?
What is the probability that a passenger survived given they were second class?
What is the probability that a passenger survived given they were third class?
Does it appear that survival depended on the passenger's class? Or are they independent? Use probability to support your claim.
Lee et al., Math in Society, §4.1 Contingency Tables, Exercise 11