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פּוֹפּוּלָרִי Word Problems >

A pair of dice is rolled. Find the probability of rolling a sum not less than 11

פתרון

A p ai r o f d i ce i s ro ll e d . F in d t h e p ro babi l i t y o f ro ll in g a s u m n o t l ess t han 11

פתרון

\frac{1}{12}

+1

עשרוני

0.08333 \dots

צעדי פתרון

The possible outcomes when two dice are rolled are

6 \cdot 6

Therefore, the number of possible outcomes:

6^{2}

Find the number of favorable outcomes of rolling a sum no less than 11:

3

Probability

= \frac{number of favorable outcomes}{total number of outcomes}

= \frac{3}{6 ^{2}}

\frac{3}{6 ^{2}} = \frac{1}{12}

= \frac{1}{12}

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