he

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

פּוֹפּוּלָרִי Word Problems >

A die is tossed 3 times. What is the probability as a decimal of no fives turning up?

פתרון

A d i e i s t osse d 3 t im es . Wha t i s t h e p ro babi l i t y a s a d ec ima l o f n o f i v es t u r nin g u p ?

פתרון

\frac{125}{216}

+1

עשרוני

0.57870 \dots

צעדי פתרון

Probability of 5 when a die is rolled:

\frac{1}{6}

For multiple independent trials

P (x) = n C x \cdot p^{x} \cdot (1 - p)^{n - x}

number of trials

n = 3

number of successes

x = 0

probability of success in any one trial

p = \frac{1}{6}

P (0) = 3 C 0 \cdot (\frac{1}{6})^{0} (1 - \frac{1}{6})^{3 - 0}

3 C 0 = 1

= 1 \cdot (\frac{1}{6})^{0} (\frac{5}{6})^{3}

1 \cdot (\frac{1}{6})^{0} (\frac{5}{6})^{3} = \frac{125}{216}

= \frac{125}{216}

דוגמאות פופולריות

the area of a rectangular piece of paper is 56 square mm. its length is 7 mm. find the breadth Edgar and Colette deposit 1,000.00 into a savings account which earns 14% interest compounded monthly. They want to use the money in the account to go on a trip in 3 years. How much will they be able to spend?The circumference of a circle is 7pi in. What is the area, in square inches? Express your answer in terms of pipi Polly has 50, 000 in a savings account that earns 7% annually.The interest is not compounded.How much interest will she earn in 5 years?A storm is moving toward your house at a speed of 20(km)/(hr). it is now 60km away from your house in what time will the storm reach your house