Discussion

Explanation:

When 2 die are rolled total possible outcomes = 6 × 6 = 36

Total outcomes: 

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For the sum to be 7, desired outcomes = {(1, 6), (6, 1), (2, 5), (5, 2), (3, 4), (4, 3)} = 6.

∴ Required probability = 6/36 = 1/6.

Hence, option (b).

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