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شائع Word Problems >

what is the probability of getting a red king card in a deck of cards

الحلّ

w ha t i s t h e p ro babi l i t y o f g e tt in g a re d kin g c a r d in a d ec k o f c a r d s

الحلّ

\frac{1}{26}

+1

عشري

0.03846 \dots

خطوات الحلّ

Find the probability of getting red:

\frac{1}{2}

Find the probability of getting king:

\frac{1}{13}

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}{2} \cdot \frac{1}{13}

\frac{1}{2} \cdot \frac{1}{13} = \frac{1}{26}

= \frac{1}{26}

أمثلة شائعة

two fair dice are rolled. what is the probability of rolling a sum not more than 6 Determine the simple interest earned on 10,000after 30 years if the APR is 14%.Clare opened a savings account and deposited 200.00. The account earns 11% interest, compounded quarterly. If she wants to use the money to buy a new bicycle in 3 years, how much will she be able to spend on the bike?man sold an article for Rs. 2400 thus making a profit of 20% Find the cost price of the article.the larger of two numbers is 20 more than the smaller. Four times the larger is 70 more than 5 times the smaller.