A taxi was involved in a hit-and-run accident at night. Two taxi companies, the green and the blue, operate in the city. 85% percent of the taxis are green and 15% are blue. A witness identified the taxi as blue.The witness identifies the correct color 80% of the time and fails 20% of the time. What is the probability that the taxi was blue?
the chance of it being blue and the witness being correct is 0.12. Or he saw blUE but it was green, which is a 0.17 chance. 0.12/(0.12+0.17)= 12/29.