Intro to Stat_Part_27

# Intro to Stat_Part_27 - 95 Review Questions 15 and 16 refer...

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95 Review Questions 15 and 16 refer to the following study done of the Girls soccer team “Snow Leop- ards”: Hair Style Hair Color blond brown black ponytail 3 2 5 plain 2 2 1 Table 5.1 Suppose that one girl from the Snow Leopards is randomly selected. Exercise 5.35: REVIEW QUESTION 15 (Solution on p. 98.) Find the probability that the girl has black hair GIVEN that she wears a ponytail. Exercise 5.36: REVIEW QUESTION 16 (Solution on p. 98.) Find the probability that the girl wears her hair plain OR has brown hair. Exercise 5.37: REVIEW QUESTION 17 (Solution on p. 98.) Find the probability that the girl has blond hair AND that she wears her hair plain.

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96 CHAPTER 5. CONTINUOUS RANDOM VARIABLES Solutions to Exercises in Chapter 5 Solution to Exercise 5.3 (p. 88) a. X ~ U ( 1, 53 ) c. f ( x ) = 1 52 where 1 x 53 d. 27 e. 15.01 f. 0 g. 29 52 h. 13 52 i. 16 27 j. 37.4 k. 40 Solution to Exercise 5.5 (p. 88) b. X ~ U ( 25, 45 ) d. uniform; continuous e. 35 minutes f. 5.8 minutes g. 0.25 h. 0.5 i. 1 j. 43 minutes k. 30 minutes l. 0.3333 Solution to Exercise 5.7 (p. 89) b. X ~ U ( 0, 8 ) d. f ( x ) = 1 8 where 0 X 8 e. 4 f. 2.31 g. 1 8 h. 1 8 i. 3.2 Solution to Exercise 5.9 (p. 90) a. 0.1 b. 10 d. 0.4512 e. 0.1920 f. 0.4966 g. 5.11 h. 10 Solution to Exercise 5.11 (p. 90) c. X ~Exp ( 0.025 ) d. 40 months
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