probability -sample space

Asked by ekarun | 6th Jun, 2009, 11:16: PM

Expert Answer:


a)P(Atmost one girl)= P(No Girl)+P(1 girl)=3*(0.5*0.5*0.5+0.5*0.5*0.5)=3/4

b)P(Atleast one girl)= 1 -P(No Girl)=1-0.5*0.5*0.5=7/8

c)P(Exactly one girl)=3*0.5*0.5*0.5=3/8



Answered by  | 7th Jun, 2009, 12:01: AM

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