Answer:
[tex]P(A or b)=P(A\cup B) = 0.9000[/tex]
Step-by-step explanation:
given , [tex]P(A)=0.4[/tex] [tex]P(B)=0.5[/tex] , [tex]P(A or B) =P(A\cup B) =?[/tex]
since ,it is an independent event , [tex]P(A and B) = P(A\cap B) =0[/tex]
here , [tex]P(A\cup B) = P(A) + P(B) - P(A\cap B)[/tex]
[tex]P(A\cup B) = 0.4 + 0.5 - 0[/tex]
[tex]P(A\cup B) = 0.9[/tex]
[tex]P(A or b)=P(A\cup B) = 0.9000[/tex]
