en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

Two coins are flipped. What is the probability that both coins land on heads?

Solution

Tw o co in s a re f l i pp e d . Wha t i s t h e p ro babi l i t y t ha t b o t h co in s l an d o n h e a d s ?

Solution

\frac{1}{4}

+1

Decimal

0.25

Solution steps

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 both coins land on heads:

1

Probability

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

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

2^{2} = 4

= \frac{1}{4}

Popular Examples

The sum of two numbers is 15 and their difference is 1 . What are the numbers?The radius of a circle is 14 in. Find its area in terms of pipi.A circle has a diameter of 6.3 meters. Find its circumference.Four times the sum of a number and 3 is equal to 9.the difference between a number and three times that number is 17. what is the number?