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人気のある Word Problems >

find the probability of getting a number less than 5 when a dice is thrown

解

f in d t h e p ro babi l i t y o f g e tt in g a n u mb er l ess t han 5 w h e n a d i ce i s t h ro w n

解

\frac{2}{3}

+1

十進法表記

0.66666 \dots

解答ステップ

The possible outcomes when \mathrm{a die is rolled} is

{1, 2, 3, 4, 5, 6} .

Therefore, the number of possible outcomes:

6

The number of favorable outcomes of \mathrm{getting a number less than 5 when a dice is thrown}:

4

Probability

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

= \frac{4}{6}

共通因数を約分する:

2

= \frac{2}{3}

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