If a contingency table shows the sex and classification of undergraduate students (freshman,sophomore,junior,senior)in your statistics class,which of the following is true?
A) The sex of the student is an example of mutually exclusive events.
B) Because yours is an undergraduate class,the events are exhaustive,i.e.,each student must fall in one of the classifications.
C) An example for the intersection of events would be the number of males who are juniors.
D) An example for the union of events would be the number of students who are female or juniors.
E) All of these are true.

Question

Quizplus · Accepted Answer

A) Mutually exclusive events mean that the occurrence of one event excludes the occurrence of the other. In this context, a student cannot be both male and female, making the events mutually exclusive. B) The classifications (freshman, sophomore, junior, senior) cover all possible standings for undergraduate students, making the events exhaustive. C) The intersection of events refers to students who belong to both categories (male and junior), which is a valid example. D) The union of events includes students who are either female or juniors, encompassing all females and all juniors, which is a correct interpretation of the union of events. Therefore, all statements are true.

If a Contingency Table Shows the Sex and Classification of Undergraduate