1)
P(z>k)=1-P(z<k)
1-P(z<k)=0.9554
P(z<k)=1-0.9554=0.0446
using table z=-1.7
2)
P(35<x<53)=P(x<53)-P(x<35)
P(x<53)
z=
using table, P(x<53)=0.93319
P(x<35)
z=
using table, P(x<35)=0.06681
P(35<x<53)=0.93319-0.06681=0.86638
3)P(x<X)=0.91
using table, z-value=1.34
X-102=7.5*1.34=10.05
X=102+10.05=112.05
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