Q. 95.0( 1 Vote )

Mark the correct A. 1/2

B. 51/101

C. 49/101

D. none of these

Answer :

Given:


n=100


p(H)=P(T)=1/2


P(x=r)= nCr pr qn-r


P(x=50)= 100C50 p50 q50



(1)


P(x=51)= 100C51 p51 q49



(2)


Equate both equations;




51-51p = 50 p


101 p = 51


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