Job

First bag contains 4 red and 3 black balls. Second bag contains 2 red and 4 black balls. One bag is selected at random. From the selected bag, one ball is drawn. Find the probability that the ball drawn is red.

(Probability)

dsuc.created: 2 years ago | dsuc.updated: 1 year ago
dsuc.updated: 1 year ago

Probability that the first bag is chosen and a red ball is drawn = 12×43+4=12×47=27 Again, probability that the second bag is chosen and a red ball is drawn=12×26=16 Probability of red =27+16=12+742=1942 (answer)

1 year ago

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