Suppose #A# and #B# are dependent events. If #P(A|B)=.25# and #P(B)=.8#, what is #P(AnnB)#?

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May 30, 2016

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#0.2#

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#P(A|B)= ( P(A cap B))/(P(B)) implies P(A cap B)=P(A|B) \times P(B)#

#P(A cap B)=0.25 \times 0.8=0.2#

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