Statistics for the Behavioral Sciences by Frederick J. Gravetter, Larry B. Wallnau ISBN 10: 1305504917 ISBN 13: 9781305504912

626 APPENDIX A | Basic Mathematics Review
Skills Assessment Preview Exam
■ Section 1
(corresponding to Section A.1 of this appendix)
1. 3 1 2 3 7 5 ?
2. (3 1 2) 3 7 5 ?
3. 3 1 2 2 2 1 5 ?
4. (3 1 2) 2 2 1 5 ?
5. 12/4 1 2 5 ?
6. 12/(4 1 2) 5 ?
7. 12/(4 1 2) 2 5 ?
8. 2 3 (8 2 2 2 ) 5 ?
9. 2 3 (8 2 2) 2 5 ?
10. 3 3 2 1 8 2 1 3 6 5 ?
11. 3 3 (2 1 8) 2 1 3 6 5 ?
12. 3 3 2 1 (8 2 1) 3 6 5 ?
■ Section 2
(corresponding to Section A.2 of this appendix)
1. The fraction 3 4 corresponds to a percentage of
________.
2. Express 30% as a fraction.
3. Convert 12
40 to a decimal.
4. 2
13 1 8
13 5 ?
5. 1.375 1 0.25 5 ?
6. 2 5 3 1 4 5 ?
7. 1 8 1 2 3 5 ?
8. 3.5 3 0.4 5 ?
9. 1 5 4 3 4 5 ?
10. 3.75/0.5 5 ?
11. In a group of 80 students, 20% are psychology
majors. How many psychology majors are in this
group?
12. A company reports that two-fifths of its employees
are women. If there are 90 employees, how many are
women?
■ Section 3
(corresponding to Section A.3 of this appendix)
1. 3 1 (22) 1 (21) 1 4 5 ?
2. 6 2 (22) 5 ?
3. 22 2 (24) 5 ?
4. 6 1 (21) 2 3 2 (22) 2 (25) 5 ?
5. 4 3 (23) 5 ?
6. 22 3 (26) 5 ?
7. 23 3 5 5 ?
8. 22 3 (24) 3 (23) 5 ?
9. 12 4 (23) 5 ?
10. 218 4 (26) 5 ?
11. 216 4 8 5 ?
12. 2100 4 (24) 5 ?
■ Section 4
(corresponding to Section A.4 of this appendix)
For each equation, find the value of X.
1. X 1 6 5 13
2. X 2 14 5 15
3. 5 5 X 2 4
4. 3X 5 12
5. 72 5 3X
6. X/5 5 3
7. 10 5 X/8
8. 3X 1 5 5 24
9. 24 5 2X 1 2
10. (X 1 3)/2 5 14
11. (X 2 5)/3 5 2
12. 17 5 4X 2 11
■ Section 5
(corresponding to Section A.5 of this appendix)
1. 4 3 5 ?
2. Ï25 2 9 5 ?
3. If X 5 2 and Y 5 3, then XY 3 5 ?
4. If X 5 2 and Y 5 3, then (X 1 Y) 2 5 ?
5. If a 5 3 and b 5 2, then a 2 1 b 2 5 ?
6. (23) 3 5 ?
7. (24) 4 5 ?
8. Ï4 3 4 5 ?
9. 36/Ï9 5 ?
10. (9 1 2) 2 5 ?
11. 5 2 1 2 3 5 ?
12. If a 5 3 and b 5 21, then a 2 b 3 5 ?
The answers to the skills assessment exam are at the
end of the appendix (pages 6972698).