Question
In a group of 31 employees, 14 take public transit while 10 drive to work . 9 employees from this group are to be selected
In a group of 31 employees, 14 take public transit while 10 drive to work. 9 employees from this group are to be selected for a study.
Note: Employees either only take the public transit, only drive to work, or do neither.
- How many different groups of 9 employees can be selected from the 31 employees?
- consist only of employees that either take public transit or drive to work?
- consist entirely of those that take public transit?
- consist entirely of those that drive to work?
- not include anyone that takes public transit?
- not include anyone that drives to work?
- consist of at least one person that takes public transit?
- consist of at least one person that drives to work?
- consist of 5 people that take the transit and 4 that drive to work?
- consist exactly of 4 people that take the transit and exactly 3 that drive to work?
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Practical Linear Algebra A Geometry Toolbox
Authors: Gerald Farin, Dianne Hansford
4th Edition
1003051219, 9781003051213
