# HW4 - Stat 3011 Homework 4 Stat 3011 Homework 4 Due Tuesday...

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Stat 3011 Homework 4 Stat 3011: Homework 4 Due: Tuesday, February 17th Directions: Same directions as always (they are also written on the homework website). One Thing: Probability can be difficult. In addition to these problems, there are many great exercises in the book to work through. If you are struggling with any of these ideas, you might want to work through some odd-numbered exercises for which there are answers in the back of the book. I will not require you to do this, I’m only suggesting ... Assigned Exercises: 1. 5.28 (page 243) 2. 5.32 (page 244) Hint: The final three probabilities refer to conditional probabilities. For instance, P(death attributed to tobacco | death from cancer) = 0.30 (You still need to completely answer part a.) 3. 5.33 (page 244) (a) book part (a) (b) book part (b) (c) book part (c) In addition to numerically justifying your answer, describe why your answer makes sense. 4. Independence and Disjoint are not the same thing! Consider a simple example. Suppose we randomly select a student from this class. Let A

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