Suppose we have four boxes A,B,C and D c...

Suppose we have four boxes A,B,C and D containing coloured marbles as given below : One of the boxes has been selected at random and a single marble is drawn from it. If the marble is red, what is the probability that it was drawn from box A? bo

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For k=1,2,3 the box B_k contains k red balls and (k+1) white balls. Let P(B_1)=1/2,P(B_2)=1/3 and P(B_3)=1/6 .A box is selected at random and a ball is drawn from it. If a red ball is drawn, then the probability that it has come from box B_2 , is

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