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Statistics - Probability Access Northeast Midwest South West

60 million households with personal computers were distributed as shown here with regard to geographic location and access to the internet. What is the probability that a randomly selected computer household would be in the category described by (South or Midwest or Yes)? In the category (West and No)?

Access Northeast Midwest South West
to Internet
Yes 9.7 11.8 16.9 12.2 50.6
No 1.2 2.3 3.8 2.1 9.4

10.9 14.1 20.7 14.3 60.0

There are 777,000 men and 588,000 women in the social science, physical and life occupation. And, 786,000 men and 204,000 women in farming occupations. For these, 2,355,000 individuals, what is the probability that a randomly selected individual will either be a male or be in the life, physical and social sciences category?

Solution Preview

(1) P(South or Midwest or Yes) = P(South) + P(Midwest) + P(Yes) - P(South and Midwest) - P(Midwest and Yes)

- P(South and ...

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