In: Statistics and Probability
If P(A)=0.8, P(B)=0.5, and P(C)=0.4, find P(A ∩ (Bc ∪ Cc )) if A, B, and C are independent.
Solution:
Given:
P(A) = 0.8 , P(B) = 0.5 , P(C)= 0.4 , Events A , B and C are independent.
We have to find:
Since A , B and C are independent events, we can write :
By using De'Morgans Law,
Thus
By complement rule of Probability :
P(Ac) = 1 - P(A) ,
then
Thus we get:
Since events are independent
Now substituting given probabilities , we get: