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mdm12Section5_1_OddSolutionsFinal

# mdm12Section5_1_OddSolutionsFinal - Q1-3 Q9 Q5-7 CHAPTER 5...

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Q1-3 Q5-7 Q9 CHAPTER 5 Section 5.1, pp. 270–272 Solutions to Odd Number Problems 1. A = {apple, orange, pear} B = {apple, banana} a) i) A B = {apple} ii) A B = {apple, orange, pear, banana} iii) S = {apple, orange, pear, banana} iv) S B = {apple, banana} v) A B S = {apple, orange, pear, banana} b) i) n ( A ) + n ( B ) = 5 ii) n ( A or B ) = 4 iii) n ( S ) = 4 iv) n ( A B ) = 4 v) n ( S A ) = 3 c) i) A : {apple, orange}, {apple, pear}, {orange, pear} ii) B : {apple, banana} iii) A B : {apple, orange}, {apple, pear}, {orange, pear}, {apple, banana}, {orange, banana}, {pear, banana} 3. n (neither) = n (total) – n (semi-formal) – n (formal) + n (both) = 220 – 110 – 150 + 58 = 18 Top

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5. n (neither) = n (total) – n (German) – n (Dutch) + n (both) = 32 – 22 – 15 + 10 = 5 7. a) Let w = n (people who read both newspapers and magazines, but not books) Since there are fewer people who read magazines than newspapers, n(M ) must
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