Question

Find a constant c for which p(z ≥ c.= 0.1587. round the answer to two decimal places.

Answer 1

What you see in the z score table is P(z< a constant), for P( z≥ a number), subtract the probability from 1:
1-0.1587=0.8413
on the z score table, you will see that p(z<1.00)=0.8413
so c=1.00