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Statistics, Probability ! Help! 
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#1
Jul611, 02:23 PM

P: 30

1. The problem statement, all variables and given/known data
The probability that Joe owns a microwave oven is 75%; the probability that he owns a CD player is 45%; and the probability that he owns both is 40%. Find the probability that he owns either one but not both. 2. Relevant equations (work posted below) 3. The attempt at a solution P(only microwave)= .75.4 = .35 P(only CD Player) = .45  .4 = .05 P(only micr. or CD Pl) = .35 + .05 = .4 Answer = .4 


#2
Jul611, 03:49 PM

P: 126

You got it! Try visualizing it with a Venn diagram: 2 overlapping circles representing probabilities that he owns either or both, surrounded by a large circle that represents probability that he owns either, both, or neither. (Hint: probability he owns neither is 0.2)



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