Statistics for the Behavioral Sciences, 10th Edition by Gravetter & Wallnau – Complete Test Bank (Chapters 1–18)

TEST BANK

,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