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Unformatted text preview: Practice Chapter 2 Test 1. List the elements of the set {x Ix is an integer between 8 and 13}. a){8,9,10,11,12} b) {9, 10, 11, 12} c){10,11,12,13} d) {} 2. Give a verbal description ofthe set {1, 3, 5, 7, 9}. a) all numbers less than IO 1)) whole numbers greater than 1
0) odd numbers between 1 and 9 (1) odd numbers between 0 and 10 3. Find the number of proper subsets of the set {a, e, i, o, u}. a) 5 b) 25 c) 31 d) 32 4. Deﬁne the setAUB.
a){xxerrxeB} b){xxeAandxeB}
c){xlxerrx¢B} d){xxEAandxeB} Use the information below to answer questions 5~8.
Let U= {2, 4, 6, 8,10,12,14} A = {2, 6,10,14} B = {6, 12} C= {4, 10, 12}
5. Find A u B. a){10,l2} b) {6} c) {2,6,10,12,14} d){} 6. Find the complement of C. a.) {2, 6, s, 14} b){4,10,12} c){6,12,14} d) {}
7. Find A m C.
a.){2,6,10, 14} b)'{4,10,12} c){4,12} d) {2, 6, 14} 8. Find (A n B) o C. a) {2, 6, 8} b) {4, 6, 10,12} c){8,10, 12,14} d) {} 9‘ Which set describes the shaded region of the Venn diagram? a)AuB b)Ar\B c)A—B d)B—A 10. Which set describes the shaded region of the Venn diagram? a) A’mB'mC b)A'nBﬂC c)Ar\B’r‘\C d)Ar\Br\C’ Use the diagram below to answer questions 11 and 12. U 1 1. Give the numbered regions that represent A' U C' . a) {3,4,5,6, 7} b) {2,3,4,7,8} (1) {1,2, 3,4, 7, 8} d) {} 12. Give the numbered regions that represent (A n C) U B . a) {3,4, 5, 6, 7} b) {2,3,4,7,8} c){1,2,3,4,7,8} d){} Use the information below to answer questions 13 and 14.
LetA = {5, 10, 15, 20, 25, 30} and let B = {10, 20, 30, 40}.
13. Find n(A). a)4 b)5 c)6 d)? 14. Find n(A o B). a)4 ' b)5 c)6 d)? 15. Let n(A)= 50, 11(3): 70, and n(A m B): 20. Find n(A o B). a) 120 b) 100 c) 70 d) 50 Use the information below to answer questions 16—18. An activities director for a summer camp has surveyed 300 teenagers. Of the 300 teens, 125 like swimming 60 like swimming and dancing
140 like dancing 25 like swimming and singing
75 like singing 10 like dancing and singing 5 like all three activities 16. How many teenagers like swimming only? a) 100 b) 50 c) 45 d) 20 17. How many teenagers like swimming but not singing? a) 100 b) 50 c) 45 d) 20 18. How many teenagers do not like any of the three activities? a) 100 b) 50 c) 45 d) 20 The chart below shows a relation between two bad habits (smoking and drinking) and excellent health.
Use the information to answer questionsl9 and 20. . 19. What percent of nonsmokers who do not drink report excellent mental health? a) 29% b) 45% C) 47% cl) 49% 20. What percent of smokers who drink report excellent physical health? a) 29% b) 45% c) 47% d) 49% ANSWERS I. b 2. d 3. c 4. a 5. c 6. a
7.d 8.b 9.0 10.13 ll.c 12.a
13. c 14. d 15. b 16. c 17. a 18. b 19. d 20. a ...
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This note was uploaded on 06/18/2011 for the course MATH 125 taught by Professor Dr.kornya during the Summer '09 term at American Public University.
 Summer '09
 Dr.Kornya
 Math

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