Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Join our platform to connect with experts ready to provide accurate answers to your questions in various fields. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Box 1 ( 7 black, 3 white balls)
Box 2 ( 4 black, 9 white balls)
Observe the boxes above.
Let:
1= choosing box 1,P(1)=0.4
2 = choosing box 2,P(2)=0.6a)
A trial has been performed and a black ball was obtained. What is the probability that the ball was from box 2? Explain your answer.