A person throws two fair dice. He wins Rs. 15 for throwing a doublet (same numbers on the two dice), wins Rs 12 when the throw results in the sum of 9 , and loses Rs. 6 for any other outcome on the throw. Then the expected gain/loss (in Rs.) of the person is:

Question

A person throws two fair dice. He wins Rs. 15 for throwing a doublet (same numbers on the two dice), wins Rs 12 when the throw results in the sum of 9 , and loses Rs. 6 for any other outcome on the throw. Then the expected gain/loss (in Rs.) of the person is:, 1 2 loss, 1 2 gain, 2 gain, 1 4 loss

MARKS App · Accepted Answer

win Rs. 15 → number of cases = 6 win Rs. 12 → number of cases = 4 loss Rs. 6 → number of cases = 26 p (expected gain/loss) = 15 × 6 36 + 12 × 4 36 - 6 × 26 36 = - 1 2

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