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شائع Word Problems >

in three tosses of a die, find the probability that a 5 will appear twice?

الحلّ

in t h ree t osses o f a d i e, f in d t h e p ro babi l i t y t ha t a 5 w i ll a pp e a r tw i ce ?

الحلّ

\frac{1}{6}

+1

عشري

0.16666 \dots

خطوات الحلّ

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{a 5 will appear twice}:

1

Probability

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

= \frac{1}{6}

أمثلة شائعة

The sum of three tenths of a number and 1 WHAT PERCENT INCREASE 50 TO 90 When 6 is added to a certain number, the result is 19 . Determine the number.There are 4 consecutive even integers that sum to 20 the sum of twice a number and five is the same as the difference between five times the number and sixteen