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Gelneren [198K]
3 years ago
11

Mark has a standard deck of 52 cards and a fair two-sided coin. What is the probability that he will pull a jack from the deck o

f cards and toss the coin to land on heads?
A. 1/2


B. 1/26


C. 1/13


D. 1/8
Mathematics
2 answers:
ad-work [718]3 years ago
6 0

Answer:

1/26

Step-by-step explanation:

there are 4 jacks in a deck and one heads on a coin. So you take 4/52 and mutiply it by 1/2 and get 1/26

Rufina [12.5K]3 years ago
6 0

Mark has a standard deck of 52 cards and a fair two-sided coin. What is the probability that he will pull a jack from the deck of cards and toss the coin to land on heads?

( C. 1/13 )

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Dafna11 [192]

Usando la distribución binomial, se encuentra que hay una probabilidad de 0.0022 = 0.22% que exactamente 5 de las amas de casa prefieran la presentación de 1500 gramos.

Para cada estudiante, solo hay dos resultados posibles. O prefieren la presentación de 500 gramos, o prefieren la de 1500 gramos. La decisión de cada estudiante es independiente de otros estudiantes, o que implica que se usa la distribuición binomial.

Distribuición binomial.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}  

C_{n,x} = \frac{n!}{x!(n-x)!}

Los parámetros son :

  • n es el número de ensayos.
  • x es la probabilidad de éxito en una sola prueba.
  • p es la probabilidad de éxito en un solo ensayo.

En este problema:

  • 20 amas de casa, o sea, n = 20.
  • 5% prefieren lo detergente de 1500 gramos, o sea, p = 0.05.
  • La probabilidad de exactamente 5 es P(X = 5).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 5) = C_{20,5}.(0.05)^{5}.(0.95)^{15} = 0.0022

Probabilidad de 0.0022 = 0.22% que exactamente 5 de las amas de casa prefieran la presentación de 1500 gramos.

Un problema similar es dado en brainly.com/question/22304471

5 0
3 years ago
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