Probability with discrete random variable example

calcolo P(X) = 4
Sommatoria : P(1) + P(2) + P(3) = 0.488
( 1 - ( 0.2+ 0.16 + 0.128 )) = 0.512
P(X ≥ 2 ) = 0.16 + 0.128 + 0.512 = 0.8
Esercizio 1 :

Esercizio 2 :

Esercizio 3 :
Benford's Law

Conviene fare il calcolo ( 1 - 0.301 )
Esercizio 4 :

Esercizio 5 :

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