A balanced die is thrown twice and the sum of the numbers appearing on the top face is observed to be 7. What is the conditional probability that the nmnber 2 has appeared at least once?
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Answer:
1:6 ..........,,,hope this helps you
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1/2
Step-by-step explanation:
because if 2 will come again their sum will 4 but we have 7 as the sum so it's probability is only 1 and second no.can be 5
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