vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

A pair of standard dice are rolled. Find the probability of rolling a sum of 2 with these dice.

Lời Giải

A p ai r o f s t an d a r d d i ce a re 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 o f 2 w i t h t h ese d i ce .

Lời Giải

\frac{1}{36}

+1

Số thập phân

0.02777 \dots

Các bước giải pháp

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 2 with these dice:

1

Probability

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

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

6^{2} = 36

= \frac{1}{36}

Ví dụ phổ biến

when 15 is decreased by three times a number, the result is 21 Find the amount in the account for the given principal, interest rate, time, and compounding period.Pequals600, requals5%, tequals7 years; compounded quarterly Gabrielle deposited 5,000 in an account earning 5% interest compounded annually.To the nearest cent, how much interest will she earn in 5 years?what is the exact chu vi of a circle with 6 radius Kira went for a drive in her new car. She drove for 37.5 miles at a speed of 30 mph. For how many hours did she drive?