Question

an urn A contains 8 black balls and 5 white balls a second urn B contains 6 black and 7 white balls the probability that a blindfolded person in one draw shall obtain a white ball

Answer 1

p(getting white ball)=5/13. in first urn

p( getting white balls)=7/13. in second urn

Answer 2

Answer:

P(for urn A)=5\13

P(for urn B)=7\13

Total P(for white ball)=12\26