:6.  Solution.  The area between -0.5 and 0.5 is about 38%, so
the area between -0.5 and 0 is 19%.  The area between -1.15 and
1.15 is 75%, so the area between 0 and 1.15 is betweem 37% and
38%.  The area between -0.5 and 1.15 is between 56% and 57%. <p>