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3 years ago

10

tienes tres cajas. Cada una de ellas tiene una información. Caja 1:El oro esrá aquí,Caja 2: El oro no está aquí, Caja 3: El oro

está en oa segunda caja. Solo una de las frases es verdadera. ¿Puedes asegurarme donde está el oro? ¿ Puedes asegurarme dónde no está el oro?

1 answer:

zalisa [80]3 years ago

6 0

Answer:

el oro no está en la caja 1 ya que la aseveración es falsa, tampoco está en la 2 ya que la aseveración es verdadera por lo tanto está en la caja 3 cuya aseveración también es falsa.

creo que calza la respuesta, pero es diferente a la del solucionario. favor corrígeme si me equivoco.

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Answer:

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Step-by-step explanation:

We are given $x=\sqrt{3}-1$ and we are asked to find the value of $x^2-x+1$ .

So we will need to find $x^2$ .

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Let's go back to the full $x^2-x+1$ .

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4 years ago

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2 years ago

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Answer:

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And the deviation would be:

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Step-by-step explanation:

For this case we have the following distribution given:

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$E(X) = \sum_{i=1}^n X_i P(X_I)$

And replacing we got:

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Now we can find the second moment given by:

$E(X^2) =\sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

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And the variance would be given by:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

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