Probabilità

Question

[attach]103002[/attach] Problemi con formula di Bayes. Spiegare il ragionamento.

EidosM · Accepted Answer

Pr [Ad] = 0.04

Pr [Bd] = 0.05

a) Pr [d] = Pr [Ad] + Pr [Bd] - Pr [ Ad & Bd ] =

= 0.04 + 0.05 - 0.04*0.05 = 0.09 - 0.002 = 0.088

b) Pr [Bd/d] = Pr [Bd&d]/Pr [d] = Pr [Bd]/Pr[d] = 0.05/0.088 =

= 25/44 = 0.5682

c) (Pr [Bd] - Pr [Ad & Bd])/Pr[d] = (0.05 - 0.002)/0.088 = 48/88 =

= 6/11 = 0.5455

EidosM

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31/01/2025 15:14