vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

single die is rolled twice. Find the probability of rolling a 6 the first time and a 3 the second time.

Lời Giải

s in g l e d i e i s ro ll e d tw i ce . F in d t h e p ro babi l i t y o f ro ll in g a 6 t h e f i rs t t im e an d a 3 t h e seco n d t im e .

Lời Giải

\frac{1}{36}

+1

Số thập phân

0.02777 \dots

Các bước giải pháp

Find the probability of rolling a 6 the first time:

\frac{1}{6}

Find the probability of a 3 the second time:

\frac{1}{6}

Since the events are independent, Use the formula

P (X_{1} \land X_{2} \land \dots \land X_{k}) = P (X_{1}) \cdot P (X_{2}) \cdot \dots \cdot P (X_{k})

= \frac{1}{6} \cdot \frac{1}{6}

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

= \frac{1}{36}

Ví dụ phổ biến

Find two consecutive whole numbers that lies sqrt(48) between.a store pays 317 dollars for a surfboard the store markes up the price by 45 percent what is the new price Dylan puts 2,000.00 into an account to use for school expenses. The account earns 11% interest, compounded monthly. How much will be in the account after 8 years?The diameter of a circle is 12 meters. What is the chu vi?Brian receives a weekly allowance for completing all of his chores. The current amount Brian receives is 13. That is 30% more than he got during elementary school. What was Brian's weekly allowance then?