Question 355281


P=0.6, protected
P=0.4, not protected

a) P(5 protected)={{{1*(0.4)^0*(0.6)^5=0.0778}}}
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b) Fewer than two, means zero or 1 mice not protected.
P(0 not protected)=P(5 protected)={{{0.0778}}}
 P(1 not protected)=P(4 protected)={{{5*(0.4)^1*(0.6)^4=0.2592}}}
{{{P=P(5)+P(4)=0.33696}}}
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c)More than 3 contract means, only zero or 1 mice protected.
P(0 protected)={{{1*(0.4)^5*(0.6)^0=0.0102}}}
P(1 protected)={{{5*(0.4)^4*(0.6)^1=0.0768}}}
{{{P=P(0)+P(1)=0.08704}}}