Question 1159342
Expected value oe mean is np=4400*0.01=44 light bulbs
variance is np(1-p)=44*0.99=43.56 light bulbs^2
sd is sqrt (V)=6.6 light bulbs
z=(x-mean)/sd
x=4400*0.0125 (for minimum)=55
z>=(55-44)/6.6
>=11/6.6 or 1.6667
that probability is 0.0478