fr

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Populaire Word Problems >

Two fair coins are tossed together. Find the probability of getting: exactly one tail and at least one tail.

Solution

Tw o f ai r co in s a re t osse d t o g e t h er . F in d t h e p ro babi l i t y o f g e tt in g : e x a c tl y o n e t ai l an d a t l e a s t o n e t ai l .

Solution

\frac{1}{2}

+1

Décimale

0.5

étapes des solutions

The possible outcomes when a coin is thrown two times are

2 \cdot 2

Therefore, the number of possible outcomes:

2^{2}

Find the number of favorable outcomes of getting: exactly 1 tail and at least 1 tail:

2

Probability

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

= \frac{2}{2 ^{2}}

Annuler le facteur commun :

2

= \frac{1}{2}

Exemples populaires

2 plus thrice the same number Shawn opened a savings account and deposited 2,159.00 as principal. The account earns 9.41% interest, compounded quarterly. What is the balance after 2 years?The circonférence of a circular garden is 103.62 feet. What is the diameter of the garden? Use 3.14 for pi and do not round your answer.The circonférence of a circle is 19pi ft. What is the area, in square feet? Express your answer in terms of pipi Find a positive real number such that its square is equal to 12 times the number, increased by 405.