HW 7 AU 2011

# HW 7 AU 2011 - Stat 133 HW 7(10 pts Name Group Please read...

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Stat 133 HW 7 (10 pts) Name___________________ Group # _____ Please read and follow the information in the “Homework Policies” document posted in the Homework section of Carmen. It’s your responsibility to know how to avoid academic misconduct. The pictures for Part 2 should be drawn by hand. The rest you can type or write (legibly!) This HW contains two parts: Part 1: Questions relating to Midterm 2, coming from any of the sections covered on Midterm 2. Part 2: Questions relating to Section 1.3, Normal Distribution, which is new material, not on Midterm 2. We are doing these pbms so you don’t get too far behind after Midterm 2 is over. Part 1 Questions: Midterm 2 Scenario 1: Arun and Bob share an apartment. Arun is in the apartment 60% of the time and Bob is in the apartment 30% of the time. Let A = Arun is in the apartment and B=Bob is in the apartment. 1. Label the two probabilities above using probability notation. a. .60 = __P(A)_________ b. .30 = __P(B)_________ 2. Are A and B independent? a. Yes b. No c. Not enough information to tell Scenario 2: Now suppose IN ADDITION to the given information above, you also know Arun and Bob are together in the apartment 20% of the time. 3.

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HW 7 AU 2011 - Stat 133 HW 7(10 pts Name Group Please read...

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