Concept explainers
(a)
To find: the probability that a sale will be made with all six contacts.
(a)
Answer to Problem 67E
The probability that a sale will be made with all six contacts is
Explanation of Solution
Given information:
A sales representative makes sales on approximately one fifth of all calls. On a given day, the representative contacts six potential clients.
Calculation:
Given that probability of sales representative makes sales on approximately is
Probability of sales representative makes second sales on approximately is
(a)
To find: the probability that a sale will be made with all six contacts.
(a)
Answer to Problem 67E
The probability that a sale will be made with all six contacts is
Explanation of Solution
Given information:
A sales representative makes sales on approximately one fifth of all calls. On a given day, the representative contacts six potential clients.
Calculation:
Given that probability of sales representative makes sales on approximately is
Probability of sales representative makes second sales on approximately is
(b)
To find: the probability that a sale will be made with none of the contacts.
(b)
Answer to Problem 67E
The probability that a sale will be made with none of the contacts is
Explanation of Solution
Given information:
A sales representative makes sales on approximately one fifth of all calls. On a given day, the representative contacts six potential clients.
Calculation:
Given that probability of sales representative makes sales on approximately is
Probability of sales representative doesn’t makes ales on approximately is,
Probability of sales representative doesn’t make sales on approximately is
(c)
To find: the probability that a sale will be made with at least one contact.
(c)
Answer to Problem 67E
The probability that a sale will be made with at least one contact is
Explanation of Solution
Given information:
A sales representative makes sales on approximately one fifth of all calls. On a given day, the representative contacts six potential clients.
Calculation:
The probability that a sale will be made with a least one contact
The probability that a sale will be made with at least one contact is
Chapter 8 Solutions
Precalculus with Limits: A Graphing Approach
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