Stats: Modeling the World Nasta Edition Grades 9-12
Stats: Modeling the World Nasta Edition Grades 9-12
3rd Edition
ISBN: 9780131359581
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
Publisher: PEARSON
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Question
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Chapter 15, Problem 6E

(a)

To determine

To find: the probability that the person is a Human Ecology Student.

(a)

Expert Solution
Check Mark

Answer to Problem 6E

0.193

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 15, Problem 6E , additional homework tip  1

Formula used:

  Probability=Favourable CasesTotalCases

Calculation:

  P(human ecology student)=43223=0.193

(b)

To determine

To find: the probability that the person is a firstborn student.

(b)

Expert Solution
Check Mark

Answer to Problem 6E

0.507

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 15, Problem 6E , additional homework tip  2

Formula used:

  Probability=Favourable CasesTotalCases

Calculation:

  P(firstborn student)=113223=0.507

(c)

To determine

To find: the probability that the person is firstborn and a Human Ecology student.

(c)

Expert Solution
Check Mark

Answer to Problem 6E

0.067

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 15, Problem 6E , additional homework tip  3

Formula used:

  Probability=Favourable CasesTotalCases

Calculation:

  P(firstborn or human ecology)=15223=0.067

(d)

To determine

To find: the probability that the person is firstborn or a Human Ecology student

(d)

Expert Solution
Check Mark

Answer to Problem 6E

0.632

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 15, Problem 6E , additional homework tip  4

Formula used:

  Probability=Favourable CasesTotalCases

Calculation:

  P(firstborn or human ecology)=P(first born)+P(human ecology)P(first born and human ecology)=113223+4322315223=0.632

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