SOLUTION: A student feels that the probability of passing her drivers test is 90%, the probability of selling her bicycle is 60%. Find the probability that she will pass the test or sell her
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Question 797412: A student feels that the probability of passing her drivers test is 90%, the probability of selling her bicycle is 60%. Find the probability that she will pass the test or sell her bicycle. What Assumption did you make?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A student feels that the probability of passing her drivers test is 90%, the probability of selling her bicycle is 60%. Find the probability that she will pass the test or sell her bicycle. What Assumption did you make?
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P(pass or sell) = P(pass) + P(sell) - P(pass AND sell)
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= 0.9 + 0.6 - 0.9*0.6
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= 1.5 - 0.54
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= 0.96
Assumed the pass and the sell are independent events.
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Cheers,
Stan H.
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