-----------------------
  l/2 (cm)  |  m (g)
-----------------------
       68.2 | 200
       81.2 | 300
       94.6 | 400
      108.5 | 500
-----------------------

TI-83:
-----------------------
        L1  |  L2
-----------------------
     1.8605 | 1.96
     2.6374 | 2.94
     3.5797 | 3.92
     4.7089 | 4.90
-----------------------

Command: LinReg(ax+b) L1, L2

          mu = 3 * (.08 g/m)?
1/(f^2 * mu) = 1/(120^2 * 3*(.08/1000))
             = 0.289
TI-83 Linreg = 1.026 <-- Is this correct?
     % error = 255.0% <-- Seems larger than yesterday...