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Exercise 9

Avg difficulty 3.0

Disjoint vs. independent. In parts (a) and (b), identify whether the events are disjoint, independent, or neither (events cannot be both disjoint and independent).

  1. You and a randomly selected student from your class both earn A’s in this course.

  2. You and your class study partner both earn A’s in this course.

  3. If two events can occur at the same time, must they be dependent?

Diez, Barr & Çetinkaya-Rundel, OpenIntro Statistics, Probability, End-of-Chapter Exercises, Exercise 9

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Adapted from OpenIntro Statistics © 2019 David Diez, Mine Çetinkaya-Rundel & Christopher D. Barr. Licensed under CC BY-SA 3.0. Source: OpenIntro Statistics. Imported at revision fee2509.