CH4 QBA EXAM UPDATED QUESTIONS
AND CORRECT ANSWERS.
1. Each individual outcome of an experiment is called
a. the sample space
b. a sample point
c. an experiment
d. an individual - ANS B
2. The collection of all possible sample points in an experiment is
a. the sample space
b. a sample point
c. an experiment
d. the population - ANS A
3. A graphical method of representing the sample points of an experiment is
a. a frequency polygon
b. a histogram
c. an ogive
d. a tree diagram - ANS D
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,4. An experiment consists of selecting a student body president and vice president. All
undergraduate students (freshmen through seniors) are eligible for these offices. How many
sample points (possible outcomes as to the classifications) exist?
a. 4
b. 16
c. 8
d. 32 - ANS B
5. Any process that generates well-defined outcomes is
a. an event
b. an experiment
c. a sample point
d. a sample space - ANS B
6. The sample space refers to
a. any particular experimental outcome
b. the sample size minus one
c. the set of all possible experimental outcomes
d. an event - ANS C
7. In statistical experiments, each time the experiment is repeated
a. the same outcome must occur
b. the same outcome can not occur again
c. a different outcome may occur
d. a different out come must occur - ANS C
8. When the assumption of equally likely outcomes is used to assign probability values, the
method used to assign probabilities is referred to as the
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, a. relative frequency method
b. subjective method
c. probability method
d. classical method - ANS D
9. The counting rule that is used for counting the number of experimental outcomes when n
objects are selected from a set of N objects where order of selection is not important is called
a. permutation
b. combination
c. multiple step experiment
d. None of these alternatives is correct. - ANS B
10. The counting rule that is used for counting the number of experimental outcomes when n
objects are selected from a set of N objects where order of selection is important is called
a. permutation
b. combination
c. multiple step experiment
d. None of these alternatives is correct. - ANS A
11. From a group of six people, two individuals are to be selected at random. How many
possible selections are possible?
a. 12
b. 36
c. 15
d. 8 - ANS C
12. When the results of experimentation or historical data are used to assign probability values,
the method used to assign probabilities is referred to as the
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AND CORRECT ANSWERS.
1. Each individual outcome of an experiment is called
a. the sample space
b. a sample point
c. an experiment
d. an individual - ANS B
2. The collection of all possible sample points in an experiment is
a. the sample space
b. a sample point
c. an experiment
d. the population - ANS A
3. A graphical method of representing the sample points of an experiment is
a. a frequency polygon
b. a histogram
c. an ogive
d. a tree diagram - ANS D
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,4. An experiment consists of selecting a student body president and vice president. All
undergraduate students (freshmen through seniors) are eligible for these offices. How many
sample points (possible outcomes as to the classifications) exist?
a. 4
b. 16
c. 8
d. 32 - ANS B
5. Any process that generates well-defined outcomes is
a. an event
b. an experiment
c. a sample point
d. a sample space - ANS B
6. The sample space refers to
a. any particular experimental outcome
b. the sample size minus one
c. the set of all possible experimental outcomes
d. an event - ANS C
7. In statistical experiments, each time the experiment is repeated
a. the same outcome must occur
b. the same outcome can not occur again
c. a different outcome may occur
d. a different out come must occur - ANS C
8. When the assumption of equally likely outcomes is used to assign probability values, the
method used to assign probabilities is referred to as the
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, a. relative frequency method
b. subjective method
c. probability method
d. classical method - ANS D
9. The counting rule that is used for counting the number of experimental outcomes when n
objects are selected from a set of N objects where order of selection is not important is called
a. permutation
b. combination
c. multiple step experiment
d. None of these alternatives is correct. - ANS B
10. The counting rule that is used for counting the number of experimental outcomes when n
objects are selected from a set of N objects where order of selection is important is called
a. permutation
b. combination
c. multiple step experiment
d. None of these alternatives is correct. - ANS A
11. From a group of six people, two individuals are to be selected at random. How many
possible selections are possible?
a. 12
b. 36
c. 15
d. 8 - ANS C
12. When the results of experimentation or historical data are used to assign probability values,
the method used to assign probabilities is referred to as the
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
