Multiple choice

Two dice are thrown simultaneously. The probability of obtaining a total score of eight is

  1. 5/36

  2. 1/6

  3. 1/9

  4. 1/12

  5. 5/12
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A Correct answer
Explanation

When two dice are thrown then there are 6 * 6 exhaustive cases. Therefore, n = 36.

Let A denote the event total score of 8 when 2 dice are thrown. Then A = {(2, 6), (3, 5), (4, 4), (5, 3), (6, 2)}

Thus, there are 5 favourable cases.

Therefore, m = 5

By definition P(A) = m/n = 5/36.

It is the correct answer.

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