vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

If a fair die is rolled 3 times, what is the probability, to the nearest thousandth, of getting exactly 0 sixes?

Lời Giải

I f a f ai r d i e i s ro ll e d 3 t im es, w ha t i s t h e p ro babi l i t y, t o t h e n e a res t t h o u s an d t h, o f g e tt in g e x a c tl y 0 s i x es ?

Lời Giải

\frac{125}{216}

+1

Số thập phân

0.57870 \dots

Các bước giải pháp

Probability of 6 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}

Ví dụ phổ biến

Jacob deposited 2,535 in an account earning 10% interest compounded annually.To the nearest cent, how much will he have in 3 years?what is the approximate area of a circle with đường kính of 8mm Alvin's age is two times Elga's age. The sum of their ages is 24. What is Elga's age?six less than two thirds of a number is negative ten .A principal 20300, is invested at 12% interest for 5 years. Determine the future value if the interest is compounded quarterly. resent value of the project.