:4. In a given population, weights are normally distributed with
an average of 150 pounds and an SD of 16 pounds.  The 40th
percentile of this distribution of weights is closest to
 
 a.  145 pounds <p>

b.  140 pounds <p>

c.  150 pounds <p>

d.  160 pounds <p>

e.  155 pounds <p>