au=bernauthor basedon=12.4 Section Exercise 3 bau=Bello bname=Topics in Contemporary Mathematics by Bello 2008, ed. 9, ISBN 0618775242 book=usf_math_bello_tcm_9e btitle=Topics in Contemporary Mathematics chap=12 cname=Statistics comm=p3 difflev=0 edt=9 error= extlink= gradable=1 ilev=0 isbn=0618775242 kw= lo=12.4.1 loname=The Normal Distribution page= parse=preview pr=bernproofer pt=full sect=4 sname=The Normal Distribution: A Problem Solving Tool source= spell=preview st=gold taxon= tname=part of a test view=edit_h warn=0 year=2008