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Sedaia [141]
3 years ago
13

Please get it right I can’t get it wrong

Mathematics
1 answer:
irinina [24]3 years ago
5 0

9514 1404 393

Answer:

  276/47

Step-by-step explanation:

The fractions can be given a common denominator by multiplying the top fraction by 6/6. Then the common denominators can be cancelled.

  \dfrac{\text{ }\dfrac{46}{7}\text{ }}{\dfrac{47}{42}}=\dfrac{\text{ }\dfrac{6}{6}\cdot\dfrac{46}{7}\text{ }}{\dfrac{47}{42}}=\dfrac{\text{ }\dfrac{276}{42}\text{ }}{\dfrac{47}{42}}=\boxed{\dfrac{276}{47}}

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solo el 20% de los empleados de la población civil que está en una base militar restringida porta su identificación personal. Si
prisoha [69]

Usando la distribución binomial, hay una probabilidad de 0.8926 = 89.26% de que el guardia de seguridad encuentre al menos uno en la base militar restringida.

<h3>¿Qué es la distribución binomial?</h3>

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.
  • p es la probabilidad de éxito en un ensayo
  • x es el número de éxitos

En este problema, hay que:

  • 20% de los empleados de la población civil que está en una base militar restringida porta su identificación personal, o sea p = 0.2.
  • Llegan 10 empleados, o sea, n = 10.

La probabilidad de que el guardia de seguridad encuentre al menos uno en la base militar restringida es dada por:

P(X \geq 1) = 1 - P(X = 0)

En que:

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

P(X = 0) = C_{10,0}.(0.2)^{0}.(0.8)^{10} = 0.1074

Por eso:

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.1074 = 0.8926

Hay una probabilidad de 0.8926 = 89.26% de que el guardia de seguridad encuentre al menos uno en la base militar restringida.

Puede-se aprender más a cerca de la distribución binomial en brainly.com/question/25132113

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2 years ago
Find the distance between Points C(4, 6) and D(−5, 6) without using a coordinate plane.
balu736 [363]

Answer:

-1, 0

Step-by-step explanation:

i think <33

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2 years ago
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