Question #167b4

1 Answer
Manasvini Nittala
Dec 8, 2017

#P(B)=1/13#

Explanation:

given #P(A)=0.7# and #P(AuuB)=0.6,P(B)=x#
since the happening of the events #A and B # are independent we can say #P(AnnB)=P(A)P(B)#
from addition theorem on probablilty
#P(AuuB)=P(A)+P(B)-P(AnnB)#
#rArr0.6=0.7+x-0.7xrArr1.3x=0.1rArrx=1/13=#

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