问题标题：
英语数学概率题帮同学问的,iftheprobabilityofsuccessfullyintroducinganynewproduct(Aforexample)tothemarketis18%,andtheprobabilityofsuccessfullyintroducingtwonewproducts(AandB)is5%,thena)whatistheprobabilitytha
问题描述：
英语数学概率题
帮同学问的,
iftheprobabilityofsuccessfullyintroducinganynewproduct(Aforexample)tothemarketis18%,andtheprobabilityofsuccessfullyintroducingtwonewproducts(AandB)is5%,then
a)whatistheprobabilitythatanynewproduct(Aforexample)willfail?
b)whatistheprobabilitythatatleastoneofthetwo(anytwo),AorB,willbesuccessful
c)whatistheprobabilitythatneitherAnorBwillbesuccessful
d)whatistheprobabilitythatAwillbesuccessful,ifyouknowthatBwassuccessful
e)wahtistheprobabilitythatAorBwassuccessful,butnotboth
f)Giventhatatleastone,AorB,wassuccessful,whatistheprobabilitythatAwassuccessful
黄海凌回答：
AcordingtoP(A)=18%P(AB)=5%,wecometotheconclusionthatP(A')=1-P(A)=82%andP(AB')=P(A)-P(AB)=18%-5%=13%.Similarly,P(B)=18%andP(BA')=13%.Then,P(A'B')=1-P(AB')-P(BA')-P(AB)=1-13%-13%-5%=69%answe...
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