Concept explainers
(a)
To find: the probability that the person is a student of the Arts and Sciences who is a 2nd child or more if randomly selecting a student.
(a)
Answer to Problem 12E
0.103
Explanation of Solution
Given:
Calculation:
There is a 10 percent chance that the selected student will be a second or more child of Arts and Science student.
(b)
To find: the probability that a student was among the students of the Arts and Sciences a 2nd child or more.
(b)
Answer to Problem 12E
0.404
Explanation of Solution
Given:
Calculation:
Probability of students who are students of the arts and sciences, and second or more children
Put the value in the formula
There is a 40% probability that the student will be among students of Arts and Science and will be 2nd child or more.
(c)
To find: the probability that a student will be enrolled among 2nd children or more in Arts and Sciences.
(c)
Answer to Problem 12E
0.2091
Explanation of Solution
Given:
Calculation:
Number of students who are students of the arts and sciences and second or more children is 23
Put the value
There is a 21 percent chance that selected students are Arts and Science Students who are second or more children.
(d)
To find: the probability of enrolling a 1st or only child in Agriculture College.
(d)
Answer to Problem 12E
0.0672
Explanation of Solution
Given:
Calculation:
Students in First Born and Human Ecology are 15
Therefore, the probability that the student is born first and that the student of Human Ecology is
Approximately 7 percent of students are both first-born and student of Ecology.
(e)
To find: the probability of an Agricultural student being a child, 1st or only.
(e)
Answer to Problem 12E
0.233
Explanation of Solution
Given:
Calculation:
There is a 23 percent probability that the chosen student will be the first child born to join the Agricultural College.
Chapter 15 Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
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