Above is the graph of a normal distribution.  Use the information provided in the illustration to find each of the following:

1.  What is the mean?  µ = _______
   
   
2.  What is the standard deviation?  σ = _______
   
   
3.  What is the variance?  σ ² = _______
   
   
   
4.  P(85 < x < 115)  ≈  _______%
   
   
   
   
5.  P(x < 115)  ≈  _______%
   
   
   
   
   
6.  P(x > 115)  ≈  _______%
   
   
   
   
   
7.  P(55 < x < 130)  ≈  _______%