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mdm12Section6_4_OddSolutionsFinal

# mdm12Section6_4_OddSolutionsFinal - Q1-7 Q15-17 Q9-13...

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Q1-7 Q9-13 Q15-17 CHAPTER 6 Section 6.4, pp. 334–335 Solutions to Odd Number Problems 1. a) Dependent; staying up late may affect performance on the examination. b) Independent; eating chocolate is unlikely to affect performance at checkers. c) Independent; hearing and eyesight are not related. d) Dependent; the purpose of a training session is to improve performance. e) Independent; academic achievement does not affect athletic achievement. f) Dependent; exposure to merchandise will make a purchase more likely. 3. There are six ways to obtain a Yahtzee out of 6 5 outcomes of rolling five dice. () 5 4 6 Yahtzee 6 1 6 1 1296 P = = = 5. a) (R) (0.85)(0.60) 0.51 P = = (B) (0.70)(0.75) 0.525 P = = Therefore Biff is more likely to enjoy a tasty treat. b) The probability of the bears solving the maze is dependent on them smelling the eucalyptus treat. 7. 55 1 22 100 3 100 121 3000 Px ⎛⎞ = ⎜⎟ ⎝⎠ = Top

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9. () (|) 0.01 0.05 1 5 0.2 PHT PH T PT = = = = 11. Assuming that birth months are independent events, 5 1 (5 people same birth month) = 12 P .
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mdm12Section6_4_OddSolutionsFinal - Q1-7 Q15-17 Q9-13...

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