Media e Varianza Flashcards

1
Q

Media Bernoulli

A

p

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2
Q

Varianza Bernoulli

A

p(1-p)

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3
Q

Media Binomiale

A

np

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4
Q

Varianza Binomiale

A

np(1-p)

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5
Q

Media Geometrica

A

1/p

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6
Q

Varianza Geometrica

A

(1-p)/p^2

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7
Q

Media Poisson

A

Lamda

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8
Q

Varianza Poisson

A

Lamda

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9
Q

Media Esponenziale

A

1/Lambda

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10
Q

Varianza Esponenziale

A

1/Lambda^2

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11
Q

Media Normale

A

Mu

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12
Q

Varianza Normale

A

Sigma^2

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13
Q

Media Uniforme

A

(a+b)/2

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14
Q

Varianza Uniforme

A

(b-a)^2/12

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15
Q

Media Ipergeometrica

A

r=n° di palline estratte
b=n° di palline bianche
n=n° totale di palline nell’urna

(rb)/n

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16
Q

Varianza Ipergeometrica

A

r=n° di palline estratte
b=n° di palline bianche
n=n° totale di palline nell’urna

(r(n-r)b(n-b)/(n^2(n-1))