Blue Cab operates 15% of the taxis in a certain city, and Green Cab operates the other 85%. After a nighttime hit-and-run accident involving a taxi, an eyewitness said the vehicle was blue. Suppose, though, that under night vision conditions, only 80% of individuals can correctly distinguish between a blue and a green vehicle. What is the (posterior) probability that the taxi at fault was blue? [Hint: A tree diagram might help. Note: This is based on an actual incident.] (Round your answer to four decimal places.) Indicate the probability rule you used. The Division Rule The Rule of Permutations The Product Rule for Ordered Pairs Bayes' Theorem The Product Rule for k-Tuples

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Blue Cab operates 15% of the taxis in a certain city, and Green Cab operates the other 85%. After a nighttime hit-and-run
accident involving a taxi, an eyewitness said the vehicle was blue. Suppose, though, that under night vision conditions, only 80%
of individuals can correctly distinguish between a blue and a green vehicle. What is the (posterior) probability that the taxi at fault
was blue? [Hint: A tree diagram might help. Note: This is based on an actual incident.] (Round your answer to four decimal
places.)
Indicate the probability rule you used.
The Division Rule
The Rule of Permutations
The Product Rule for Ordered Pairs
Bayes' Theorem
O The Product Rule for k-Tuples
Transcribed Image Text:Blue Cab operates 15% of the taxis in a certain city, and Green Cab operates the other 85%. After a nighttime hit-and-run accident involving a taxi, an eyewitness said the vehicle was blue. Suppose, though, that under night vision conditions, only 80% of individuals can correctly distinguish between a blue and a green vehicle. What is the (posterior) probability that the taxi at fault was blue? [Hint: A tree diagram might help. Note: This is based on an actual incident.] (Round your answer to four decimal places.) Indicate the probability rule you used. The Division Rule The Rule of Permutations The Product Rule for Ordered Pairs Bayes' Theorem O The Product Rule for k-Tuples
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Step 1: Given information

Probability blue cab is PA=0.15

Probability green cab is PA'=0.85

Probability that witness says that involved taxi is blue given that it is blue is PB|A=0.8

Probability that witness says that involved taxi is not blue given that it is not blue is PB'|A'=0.8

 

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