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According to an online survey by Harris Interactive for job site CareerBuilder.com, more than half of IT (information technology) workers say they have fallen asleep at work (UnformationWeek, September 27, 2007). Sixty-four percent of government workers admitted to falling asleep on the job. Consider the following contingency table that is representative of the survey results. Job Category Slept on the IT Government Professional Professional Yes No 155 145 256 144 a. Convert the contingency table into a joint probablity table. (Round intermediate calculations to at least 4 decimal places and final answers to 4 decimal places.) Job Category IT Slept on the Professional Professional Government Total Job? (IT) Yes (Y) No (N) Total b. What is the probability that a randomly selected worker is an IT professionar? (Round intermediate calculations to at least 4 decimal places and final answer to 4 decimal places.) Probability
c. What is the probability that a randomly selected worker slept on the job? (Round intermediate calculations to at least 4 decimal places and final answer to 4 decimal places.) d. If a randomly selected worker slept on the job, what is the probability that he/she is an IT professional? (Round intermediate calculations to at least 4 decimal places and final answer to 4 decimal places.) e. If a randomly selected worker is a government professional, what is the probability that he/she slept on the job? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Probability
math   Statistics-And-Probability   
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.Job Catagory the job?Pofeiona pofessioval (JT) |ISS/700 :0.2 219 (Gi) Yes (x) 25%00:13653 41 00 500/700:0 478s! ao%00-o.sin! 짜 I 900 04285 . 40.58 2 10o P orker stapt on tha job P(B) 256/00256 400/00 4000.6400 Scanned by CamScanner

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