zs

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

受欢迎的 Word Problems >

What is the probability of rolling a sum of 9 when two dice are tossed?

解答

Wha t i s t h e p ro babi l i t y o f ro ll in g a s u m o f 9 w h e n tw o d i ce a re t osse d ?

解答

\frac{1}{9}

+1

十进制

0.11111 \dots

求解步骤

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 of 9 when 2 dice are tossed:

4

Probability

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

= \frac{4}{6 ^{2}}

\frac{4}{6 ^{2}} = \frac{1}{9}

= \frac{1}{9}

流行的例子

The 面积 of a rectangular garden is 4692m.If the length of the garden is 92m, what is its width?The radius of a circle is 1.8 m. Find the 周长 to the nearest tenth product of two consecutive numbers is 2550 The 差集 between a number, x, and fifteen is five The sum of two numbers is 141. The larger number is double than the smaller number. What are the numbers?