Test bank for statistics for the behavioral sciences 10th edition Frederick j gravetter & larry b. wallnau complete guide

TEST BANK

,Test bank for statistics for the behavioral sciences 10th
edition Frederick j gravetter & larry b. wallnau
complete guide
1. What is the total number of scores for the distribution shown in the following table?
X f
4 3
3 5
2 4
1 2
a. 4
b. 10
c. 14
d. 37
ANSWER: c
REFERENCES: 2.1 Frequency Distributions and Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

2. A sample of n = 15 scores ranges from a high of X = 11 to a low of X = 3. If these scores are placed in a frequency
distribution table, how many X values will be listed in the first column of that table?
a. 8
b. 9
c. 11
d. 15
ANSWER: b
REFERENCES: 2. 1 Frequency Distributions and Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

3. For the following frequency distribution of quiz scores, how many individuals took the quiz?
X f
5 6
4 5
3 5
2 3
1 2
a. n = 5
b. n = 7
c. n = 15
d. n = 21
ANSWER: d
REFERENCES: 2. 1 Frequency Distributions and Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

4. For the following distribution of quiz scores, if a score of X = 3 or higher is needed for a passing grade, how many
individuals passed?
X f
5 6
4 5

,3 5
2 3
1 2
a. 3
b. 11
c. 16
d. 21
ANSWER: c
REFERENCES: 2. 1 Frequency Distributions and Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

5. For the following distribution of quiz scores, How many individuals had a score of X = 2?
X f
5 6
4 5
3 5
2 3
1 2
a. 1
b. 2
c. 3
d. 5
ANSWER: c
REFERENCES: 2. 1 Frequency Distributions and Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

6. For the following frequency distribution of exam scores, what is the lowest possible reported score on the exam?
X f
90-94 3
85-89 4
80-84 5
75-79 2
70-74 1
a. x = 70
b. x = 74
c. x = 90
d. x=94
ANSWER: a
REFERENCES: 2.2 Grouped Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

7. For the following frequency distribution of exam scores, how many students had scores lower than X = 80?
X f
90-94 3
85-89 4
80-84 5
75-79 2
70-74 1

, a. 2
b. 3
c. 7
d. 8
ANSWER: b
REFERENCES: 2.2 Grouped Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

8. In a grouped frequency distribution one interval is listed as 50-59. Assuming that the scores are measuring a
continuous variable, what are the real limits of this interval?
a. 50 and 59
b. 50.5 and 59.5
c. 49.5 and 59.5
d. 49.5 and 60.5
ANSWER: c
REFERENCES: 2.2 Grouped Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

9. For the following distribution, how many people had scores less than X = 20?
X f
20-25 2
15-19 5
10-14 4
5-9 1
a. 5
b. 10
c. 11
d. 12
ANSWER: b
REFERENCES: 2.2 Grouped Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

10. For the following distribution, what is the highest possible score?
X f
20-25 2
15-19 5
10-14 4
5-9 1
a. 5
b. 20
c. 25
d. 26
ANSWER: c
REFERENCES: 2.2 Grouped Frequency Distribution Tables
QUESTION TYPE: Multiple Choice

,KEYWORDS: Bloom’s: Understand

11. For the following distribution, how many people had scores greater than X = 14?
X f
20-25 2
15-19 5
10-14 4
5-9 1
a. 5
b. 7
c. 10
d. 11
ANSWER: b
REFERENCES: 2.2 Grouped Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

12. For the following distribution, what is the width of each class interval?
X f
20-24 2
5-19 5
10-14 4
5-9 1
a. 4
b. 4.5
c. 5
d. 10
ANSWER: c
REFERENCES: 2.2 Grouped Frequency Distribution Tables
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

13. If the following continuous distribution was shown in a histogram, the bar above the 15-19 interval would reach from
to .
X f
20-25 2
15-19 5
10-14 4
5-9 1
a. X = 14.5 to X = 19.5
b. X = 15.0 to X = 19.0
c. X = 15.5 to X = 18.5
d. X = 15.5 to X = 19.5
ANSWER: a
REFERENCES: 2.3 Frequency Distribution Graphs
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand
14. In a frequency distribution graph, frequencies are presented on the and the scores (categories) are listed on the
.
a. X axis; Y axis
b. horizontal line; vertical line

, c. Y axis; X axis
d. class interval ;horizontal line
ANSWER: c
REFERENCES: 2.3 Frequency Distribution Graphs
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Remember

15. What frequency distribution graph is appropriate for scores measured on a nominal scale?
a. only a histogram
b. only a polygon
c. either a histogram or a polygon
d. only a bar graph
ANSWER: d
REFERENCES: 2.3 Frequency Distribution Graphs
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Understand

16. The classrooms in the Psychology department are numbered from 100 to 108. A professor records the number of
classes held in each room during the fall semester. If these values are presented in a frequency distribution graph, what
kind of graph would be appropriate?
a. a histogram
b. a polygon
c. a histogram or a polygon
d. a bar graph
ANSWER: d
REFERENCES: 2.3 Frequency Distribution Graphs
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Apply

17. A researcher records the number of traffic tickets issued in each county along the New York State thruway. If the
results are presented in a frequency distribution graph, what kind of graph should be used?
a. a bar graph
b. a histogram
c. a polygon
d. either a histogram or a polygon
ANSWER: a
REFERENCES: 2.3 Frequency Distribution Graphs
QUESTION TYPE: Multiple Choice
KEYWORDS: Bloom’s: Apply

18. What kind of frequency distribution graph shows the frequencies as bars, with no space between adjacent bars?
a. a bar graph
b. a histogram
c. a polygon
d. a pie chart
ANSWER: b
REFERENCES: 2.3 Frequency Distribution Graphs