A) 0.5
B) 0.8
C) 1
D) 0.1
Correct Answer: B
Solution :
\[P({A}')=0.3\], \ \[P(A)=0.7\] \[P({B}')=0.6\], \[\therefore \] \[P(B)=0.4\] and \[P(A\cap {B}')=0.5\] \[\therefore \]\[P(A\cup {B}')=P(A)+P({B}')-P(A\cap {B}')\] = 0.7 + 0.6 ? 0.5 = 0.8.You need to login to perform this action.
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