Test Index

Probability

Question : 101 of 127

Marks: +1, -0

Solution:

Concept:

Compute probability as favorable outcomes divided by total outcomes.

Explanation:

Total outcomes when throwing two dice:

6 \times 6 = 36

Favorable outcomes (sum more than 9): sums 10, 11, 12.

• Sum 10:

(4,6), (5,5), (6,4)

→ 3 outcomes.

• Sum 11:

(5,6), (6,5)

→ 2 outcomes.

• Sum 12:

(6,6)

→ 1 outcome.

Total favorable outcomes =

3 + 2 + 1 = 6

Probability =

\frac{6}{36} = \frac{1}{6}

None of the given options equals

\frac{1}{6}

Answer:

D. none

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