Question

fill in the blank. the following contingency table shows data from a shipwreck. here is a two-way table of those aboard this ship, classified according to the class of ticket and whether the ticket holder survived or didnt. to look at the overall distribution of ticket \class\ on this ship, we would find the ______.
first second third crew total
alive 203 118 178 212 711
dead 122 167 528 673 1490
total 325 285 706 885 2201

to look at the overall distribution of ticket \class\ on this ship, we would find the
option 1: marginal distribution of \survival\,
option 2: table percentages,
option 3: marginal distribution of \class\,
option 4: conditional distribution of \class\ by whether a person survived

Explanation:

To find the overall distribution of ticket "Class", we need the marginal distribution of "Class" (shows distribution of one variable, here Class, ignoring Survival). Marginal dist of Survival is about Survival, table percentages are overall, conditional is dependent on Survival. So the correct choice is marginal distribution of "Class".

Answer:

marginal distribution of "Class"