ar

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

شائع Word Problems >

Two fair dice are thrown twice. What is the probability that at least one of the numbers obtained is prime number

الحلّ

Tw o f ai r d i ce a re t h ro w n tw i ce . Wha t i s t h e p ro babi l i t y t ha t a t l e a s t o n e o f t h e n u mb ers o b t ain e d i s p r im e n u mb er

الحلّ

\frac{11}{36}

+1

عشري

0.30555 \dots

خطوات الحلّ

Find the probability of no 1:

\frac{25}{36}

Probability of at least 1 of the numbers obtained is prime number

= 1 -

Probability of no 1

= 1 - \frac{25}{36}

1 - \frac{25}{36} = \frac{11}{36}

= \frac{11}{36}

أمثلة شائعة

cole opened a savings account 8 years ago.The account earns a 7%intrest, compounded monthly. if the current balance is 100.00, how much did he deposit initially?John deposits 5000 into an account that pays simple interest at a rate of 6 percent per year. How much interest will he be paid in the first years?The sum of two numbers is 15 and their difference is 1. linear equation Find the future value and interest earned if 8904.56 is invested for 7 years at 6% compounded semiannually Brooke has 7 in an account that earns 10% interest compounded annually.To the nearest cent, how much interest will she earn in 2 years?