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24 May, 18:25

2) La distribución de probabilidad de una variable aleatoria discreta viene dada por:

xi

1

2

3

4

pi

0,3

0,35

r

0,2

a) Halla "r" para que se trate de una función de probabilidad.

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Answers (1)
  1. 24 May, 18:49
    0
    sine px has a probability math function, we have that 4 over z=o px (x) = 1 therefore

    px (2) = 1-px (0) + px (1) + px (3) + px (4))

    1 - (0.35+0.15+0.1+).2)

    =0.2
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