TS EAMCET · Maths · Probability
Bag contains red and black balls. Bag II contains red and black balls. If one ball is drawn at random from one of the bags, and it is found to be red, then the probability that it was drawn from Bag , is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Let, U1 & U2 be the events of the selection of bag I and bag II, respectively. ⇒PU1=PU2=12 Now, PU2R=PU2∩RPR ⇒PU2R=12×51112×37+12×511=3568
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