Concept explainers
(a)
To find: the probability that you are chosen “fair” means equally likely.
(a)
Answer to Problem 25E
The correct answer is: 0.05.
Explanation of Solution
Given:
There are 20 candidates
The person worked for 4 hours
The group of 19 students worked for 45 hours.
Calculation:
Since, fair means equally likely, therefore, the best way to select a candidate is to make 20 equal chits and write a code number inside it corresponding to each volunteer. Then draw a chit at random from the 20 chits. Assume, event A denote choosing the concerned volunteer. The required probability is as follows:
Conclusion:
Therefore, the correct answer is: 0.05.
(b)
To find: the probability that you are chosen “fair” means proportional to the number of hours each student worked in preparation.
(b)
Answer to Problem 25E
The correct answer is: 0.089.
Explanation of Solution
Calculation:
Since, fair means proportional to the number of hours each student worked, therefore, the best way to select a candidate is to make 45 equal chits and write the number of hours each student worked inside it. Then draw a chit at random from the 45 chits. Assume, event B denote choosing the concerned volunteer. The required probability is as follows:
Conclusion:
Therefore, the correct answer is: 0.089.
Chapter 10 Solutions
BIG IDEAS MATH Algebra 2: Common Core Student Edition 2015
- Algebra and Trigonometry (6th Edition)AlgebraISBN:9780134463216Author:Robert F. BlitzerPublisher:PEARSONContemporary Abstract AlgebraAlgebraISBN:9781305657960Author:Joseph GallianPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
- Algebra And Trigonometry (11th Edition)AlgebraISBN:9780135163078Author:Michael SullivanPublisher:PEARSONIntroduction to Linear Algebra, Fifth EditionAlgebraISBN:9780980232776Author:Gilbert StrangPublisher:Wellesley-Cambridge PressCollege Algebra (Collegiate Math)AlgebraISBN:9780077836344Author:Julie Miller, Donna GerkenPublisher:McGraw-Hill Education