Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5

1.	Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5 black balls.One ball is transferred from Bag I to Bag II and then a ball is drawn from Bag II.The ball so drawn is found to be red in colour. Find the probability that thetransferred ball is black.
Answer» P(E2/A)=P(E2).P(A/E2)/P(E1).P(A/E1)+P(E2).P(A/E2) Step-by-step explanation: A: EVENT of drawing RED ball from bag II E1: Event that red ball is transferred from bag I E2: Event that BLACK ball is transferred from bag I

Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5 black balls.One ball is transferred from Bag I to Bag II and then a ball is drawn from Bag II.The ball so drawn is found to be red in colour. Find the probability that thetransferred ball is black.

Answer»

P(E2/A)=P(E2).P(A/E2)/P(E1).P(A/E1)+P(E2).P(A/E2)

Step-by-step explanation:

A: EVENT of drawing RED ball from bag II

E1: Event that red ball is transferred from bag I

E2: Event that BLACK ball is transferred from bag I

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Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5 black balls.One ball is transferred from Bag I to Bag II and then a ball is drawn from Bag II.The ball so drawn is found to be red in colour. Find the probability that thetransferred ball is black.​

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Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5 black balls.One ball is transferred from Bag I to Bag II and then a ball is drawn from Bag II.The ball so drawn is found to be red in colour. Find the probability that thetransferred ball is black.