Find the value of the standard normal random variablez

z, calledz

0

z0such that (round your answer to 2 decimal places if applicable):

(a)

P(zz

0

)=0.9578

P(zz0)=0.9578

z

0

=

z0=

(b)

P(z

0

zz

0

)=0.068

P(z0zz0)=0.068

z

0

=

z0=

(c)

P(zz

0

)=0.4187

P(zz0)=0.4187

z

0

=

z0=