A study of 204 advertising firms revealed their income after taxes:   Income after Taxes Number of Firms Under $1 million   88   $1 million to $20 million   52   $20 million or more   64         Click here for the Excel Data File a. What is the probability an advertising firm selected at random has under $1 million in income after taxes? (Round your answer to 2 decimal places.)   b-1. What is the probability an advertising firm selected at random has either an income between $1 million and $20 million, or an income of $20 million or more? (Round your answer to 2 decimal places.)   b-2. What rule of probability was applied? multiple choice Rule of complements only Special rule of addition only Either

College Algebra
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ISBN:9781337282291
Author:Ron Larson
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Chapter8: Sequences, Series,and Probability
Section8.7: Probability
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A study of 204 advertising firms revealed their income after taxes:
 

Income after Taxes Number of Firms
Under $1 million   88  
$1 million to $20 million   52  
$20 million or more   64  
 

 
  Click here for the Excel Data File

a. What is the probability an advertising firm selected at random has under $1 million in income after taxes? (Round your answer to 2 decimal places.)

 


b-1. What is the probability an advertising firm selected at random has either an income between $1 million and $20 million, or an income of $20 million or more? (Round your answer to 2 decimal places.)

 


b-2. What rule of probability was applied?

multiple choice
  • Rule of complements only
  • Special rule of addition only
  • Either
 
 
 
 
 
 
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