and stanard deviaton a Aba ise asme e man valaes ofnand ptotrd the mean ssue tha

Question

and stanard deviaton a Aba ise asme e man valaes ofnand ptotrd the mean ssue thal the given procedure yields a binomial destribution with n trials and he probability of success for one trial is p Use the given uwat vakae ·20 mnmum usual vakue -20, and the ma assumed that 50% of babies are gn, so n-14 and p: 05 In an analysis of preliminary test results trom a gender-selection method, 14 bables are born and R is The value ofthe mea… D-smony your answer ) The value of the standard devutionsRound to one decimal place as needed Themrumum usual value . 20-D(Round to ion decimal place as needed ) The marnum usual value is +20.DRound to one decinal place as needed )

Explanation / Answer

We have given that,

n=14,p=0.5

x follow binomial distribution.we know that,mean and variance of binomial distribution.

u=E(x)=n*p

   =14*0.5=7

sig^2=var(x)=n*p*(1-p)

. =14*0.5*0.5

   =3.5

u-2*sig=(7-2*sqrt(3.5))

=(7-3.7)

=3.3

u+2sig=(7+3.7)

=10.7

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