Concept explainers
To find: the percentage of all online, have a profile, and comments on a friend’s blog.
Answer to Problem 82E
The percentage of all online, have a profile, and comments on a friend’s blogis
Explanation of Solution
Given:
93% of teenager are online and 55% of them are posted a profiles on social networking sites.
Concept used:
Definition of conditional probability:
Calculation:
According to question,
Use the definition of conditional probability:
Thus, it obtained:
Hence,thepercentage of all online, have a profile, and comments on a friend’s blog is
Chapter 5 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Basic Business Statistics, Student Value Edition
Statistics for Business and Economics (13th Edition)
Essentials of Statistics, Books a la Carte Edition (5th Edition)
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Fundamentals of Statistics (5th Edition)
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