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STAT 351 - OSU Online Quiz 3 Questions
and Correct Answers/ Latest Update /
Already Graded
The proportion of times an outcome would occur in a very long series
of repetitions is called _____.
A. the probability of the outcome
B. the outcome
C. an event
D. a probability experiment
E. a trail
Ans: A. the probability of the outcome
A bag contains 5 red marbles and 10 blue marbles. Two marbles are
drawn from the bag, one at a time, without replacement. What is the
sample space?
(Note: in each set of parentheses below (if given), the first color is the
color of the marble drawn first and the second color is the color of the
marble drawn second.)
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A. S = {5, 10}
B. S = {(blue, blue), (blue, red), (red, red)}
C. S = {blue, red}
D. S = {(blue, blue), (blue, red), (red, blue), (red, red)}
E. = {1/3, 2/3}
Ans: D. S = {(blue, blue), (blue, red), (red, blue), (red, red)}
A bag contains 5 red marbles and 10 blue marbles. Two marbles are
drawn from the bag, one at a time, without replacement. What is a
trial?
A. Pulling two marbles, without replacement
B. The 15 marbles in the bag
C. Pulling a single marble
D. Observing the color on the marble pulled
Ans: A. Pulling two marbles, without replacement
The following table is the roster for a small upper-division biology class
at a university. The course is offered to both biology and non-biology
majors.
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Consider major only. The sample space contains the majors of each of
the 18 students. That is, the sample space is a list of the 18 majors in
the table above. Are the 18 outcomes in this sample space equally
likely to occur if a student from this list is randomly selected?
A. Yes, since each student is equally likely to be selected if a student
was randomly selected from this list.
B. No, since each student is not equally likely to be selected if a student
was randomly selected from this list.
Ans: A. Yes, since each student is equally likely to be selected
if a student was randomly selected from this list.
The following table is the roster for a small upper-division biology class
at a university. The course is offered to both biology and non-biology
majors.
What is the probability that a randomly selected student from this class
is a biology major? (Round your answer to three decimal points.)
Ans: 0.611
The following table is the roster for a small upper-division biology class
at a university. The course is offered to both biology and non-biology
majors.
All rights reserved © 2025/ 2026 |
STAT 351 - OSU Online Quiz 3 Questions
and Correct Answers/ Latest Update /
Already Graded
The proportion of times an outcome would occur in a very long series
of repetitions is called _____.
A. the probability of the outcome
B. the outcome
C. an event
D. a probability experiment
E. a trail
Ans: A. the probability of the outcome
A bag contains 5 red marbles and 10 blue marbles. Two marbles are
drawn from the bag, one at a time, without replacement. What is the
sample space?
(Note: in each set of parentheses below (if given), the first color is the
color of the marble drawn first and the second color is the color of the
marble drawn second.)
All rights reserved © 2025/ 2026 |
, Page |2
A. S = {5, 10}
B. S = {(blue, blue), (blue, red), (red, red)}
C. S = {blue, red}
D. S = {(blue, blue), (blue, red), (red, blue), (red, red)}
E. = {1/3, 2/3}
Ans: D. S = {(blue, blue), (blue, red), (red, blue), (red, red)}
A bag contains 5 red marbles and 10 blue marbles. Two marbles are
drawn from the bag, one at a time, without replacement. What is a
trial?
A. Pulling two marbles, without replacement
B. The 15 marbles in the bag
C. Pulling a single marble
D. Observing the color on the marble pulled
Ans: A. Pulling two marbles, without replacement
The following table is the roster for a small upper-division biology class
at a university. The course is offered to both biology and non-biology
majors.
All rights reserved © 2025/ 2026 |
, Page |3
Consider major only. The sample space contains the majors of each of
the 18 students. That is, the sample space is a list of the 18 majors in
the table above. Are the 18 outcomes in this sample space equally
likely to occur if a student from this list is randomly selected?
A. Yes, since each student is equally likely to be selected if a student
was randomly selected from this list.
B. No, since each student is not equally likely to be selected if a student
was randomly selected from this list.
Ans: A. Yes, since each student is equally likely to be selected
if a student was randomly selected from this list.
The following table is the roster for a small upper-division biology class
at a university. The course is offered to both biology and non-biology
majors.
What is the probability that a randomly selected student from this class
is a biology major? (Round your answer to three decimal points.)
Ans: 0.611
The following table is the roster for a small upper-division biology class
at a university. The course is offered to both biology and non-biology
majors.
All rights reserved © 2025/ 2026 |
