Question

P (-0.24 < z < 0.67)

Answer 1

P (-0.24 < z < 0.67)
is equal to
P(z<0.67) - P(z<-0.24)

From Normal tables, 
P(z<0.67) - P(z<-0.24)
=P(z<0.67) - P(z<-0.24)
=0.7485711-0.4051651
=0.343406