Probabilidad y estadística Flashcards

1
Q

Promedio es igual a

A

Media

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2
Q

El número que se repite más veces representa la…

A

Moda

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3
Q

En un orden ascendente, el valor que esta en medio se le conoce como

A

Mediana

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4
Q

V mayor - V menor =

A

Rango

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5
Q

Fórmula de Q1

A

Qk = k(1+n) / 4

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6
Q

Fórmula de Q2

A

Qk = kn / 4

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7
Q

P(A) =

A

n (A) / n (Ω)

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8
Q

P(A) < o =

A

1

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9
Q

P(A^c) =

A

1 - P(A)

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10
Q

P(A-B) =

A

P(A) - P(AnB)

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11
Q

P(AuB) =

A

P(A) + P(B) - P(AnB)

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12
Q

P(A-B) =

A

P(AnB^c)

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13
Q

En las combinaciones el orden…

A

NO IMPORTA

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14
Q

En las permutaciones el orden…

A

SI IMPORTA

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15
Q

Fórmula de probabilidad condicional

A

P(A/B) = P(AnB) / P(B)

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16
Q

Regla de la multiplicación

A

P(AnB) = P(A/B) P(B)

17
Q

Probabilidad total

A

P (E) = P(E/H1) P(H1) + P(E/H2) P(H2) + … + P(E/Hk) P(Hk)

18
Q

Teorema de Bayes

A

P(B/A) = P(A/B) P(B) / P. total de (A)

19
Q

Maneras de ordenar en hilera y sin repetición n objetos diferentes en r lugares diferentes.
nPr =

A

n! / (n-r !)

20
Q

Maneras de ordenar en hilera un total de n objetos diferentes de los cuales r objetos son identicos, s objetos son identicos y t objetos son identicos

A

n! / ( r! s! t! )

21
Q

nCr =

A

n! / (r! * (n-r)! )