350rechw3 - Statistics 350 - Recommended Problems for HW 3...

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Statistics 350 -- Recommended Problems for HW 3 -- Fall 2006 Textbook: Chapter 8 (pages 321 – 328) ---- (pages 285 – 291 in the 2 nd edition) 8.2 (8.2 in the 2 8.6 (8.3 in the 2 8.7 (8.4 in the 2 edition) and add the following questions: (a) What is the average or expected number of questions on a quiz? (b) What is the standard deviation? (c) Suppose that you see page one of the quiz has 15 questions on it (so that the quiz has at least 15 questions). What is the (conditional) probability that the quiz has 25 or more questions on it? 8.19, 8.33 (a and c), 8.34, 8.48, 8.63, 8.81, 8.87 (The above correspond to the following in the 2 edition : 8.16, 8.30 (a and c), 8.31, 8.48, 8.58, 8.78, 8.84) Additional Problems: Additional Problem 1: a. Suppose a football quarterback has been completing a pass 60% of the time. Assuming that pass outcomes are independent events, compute the probability that in the next 8 passes i. the quarterback completes exactly six passes. ii.
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