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For a biased die the probabilities for t...

For a biased die the probabilities for the different faces to turn up are given below: Faces : 1 2 3 4 5 6 Probabilities : 0.10 0.32 0.21 0.15 0.05 0.17 The die is tossed & you are told that either face one or face two has turned up. Then the prothat it is face one is :

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The correct Answer is:
A, B
Probability (face 1)`=(0.1)/(0.1+0.32)=(0.1)/(0.42)=(5)/(21)`
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