A crime has occured in Carborough, involving a taxi. The police interviewed an eyewitness, who stated that the taxi involved was blue.
The police know that 85% of taxis in Carborough are blue, the other 15% being green. They also know that statistically witnesses in these situations tend to be correct 80% of the time - which means they report things wrong the other 20% of the time.
What is the probability that the taxi involved in the crime was actually blue?
Dulanjana, by your logic, the more witnesses we have, the lower the odds of the car being blue would be: adding another 80% witness would drop the probability further down.
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Posted by levik
on 2002-05-28 11:33:12 |