Question 1099643
mean=np=1600*0.08=128
variance is np(1-p)=128*0.92=117.76
sd is sqrt (v)=10.85
not more than 150 is 150.5 with continuity correction factor
z=(150.5-128)/10.85
z=22.5/10.85
z is less than or equal to +1.08
0.8599 is the probability.
Makes intuitive sense since expected value is 128 and problem asks for probability under 150.