Concept explainers
(a)
To find:Theprobability of first name drawn is a junior and the second is a senior.
(a)
Answer to Problem 3WE
The probability of first name drawn is a junior and the second is a senior
Explanation of Solution
Given information:
The given information isname of
Calculation:
Total name =
Juniorsname =
Seniorsname =
Probabilityof juniorsname =
The Probability of gettingseniorsafter one junior is set aside=
The Probability of the first name being a junior can be reduced to
Thus,the probability of first name drawn is a junior and the second is a senior
(b)
To find:The probability of bothnames drawn is sophomore.
(b)
Answer to Problem 3WE
The probability of both names drawn is sophomore
Explanation of Solution
Given information:
The given information isname of
Calculation:
Total name =
Sophomorename =
Probability of firstname drawn is sophomore
Probability of secondname drawn is sophomore
Thus,the probability of both names drawn is sophomore
Chapter 15 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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