:2. A box contains 10,000 tickets.  The box average is 100, and
the box SD is 20.  A simple random sample of 100 tickets is drawn
from the box.  The chance that the average of the tickets in the
sample is between 98 and 102 is closest to <p>

a.  100%
 b.   68%
 c.    0%
 d.   95%
 e.  99.7% <p>