- #1
DAKIK
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Homework Statement
The two events A and B have probabilities 0.2 and 0.4. Also P (A n B)=0:08.
(a)Are the two events A and B independent? Explain.
(b) Find the probability that either A or B or both occur.
(c) Find the probability that neither A nor B occurs.
(d) Find the probability that exactly one of A or B occurs.
Homework Equations
P(A n B) = P(A)*P(B)
The Attempt at a Solution
My working out:
(a) For 2 events to be independent they must satisfy:
P(A n B) = P(A)*P(B)
so 0.08 = 0.2x0.4
which makes them independent .. Correct ?
(b) hmm not sure about this one! need some helpp
(c) P(neither A or B) = 0.8*0.6 Correct?
(d) hmm maybe P = 0.2*0.6 + 0.4*0.8 = 0.44 ?