Concept explainers
a.
To find: the probability that the scholarship winner is a junior or senior.
a.
Answer to Problem 95RE
Explanation of Solution
Given:
At a university, 31% of the students are freshmen, 26% are sophomores, 25% are juniors, and 18% are seniors.
Let A be the event of randomly selected student being a junior.
Then
Let B be the event of randomly selected student being a senior.
Then
Thus, the probability that the scholarship winner is a junior or senior is:
b.
To find: the probability that the scholarship winner is a freshman, sophomore, or junior.
b.
Answer to Problem 95RE
Explanation of Solution
Given:
At a university, 31% of the students are freshmen, 26% are sophomores, 25% are juniors, and 18% are seniors.
Let A be the event of randomly selected student being a freshman.
Then
Let B be the event of randomly selected student being a sophomore.
Then
Let C be the event of randomly selected student being a junior.
Then
Thus, the probability that the scholarship winner is a freshman, sophomore, or junior is:
Chapter 9 Solutions
EBK PRECALCULUS W/LIMITS
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning