How would I use this information to calculate propagation error?

0 150 Temperature C Power (mW) 18.02 23.02 29 34 40.01 Length (M3 to Graph) (cm) Ax 0.118 150.5 0.437 0.119 150.9 0.266 150 0.424 151.1 3 3.5 4 2 Laser Position vs Temperature 4.1 Temperature K Ax 296.17 302.15 307.15 3 3.5 3.9 3.7 Laser Position (cm) 3.5 3.3 3.1 y = 0.0908x - 23.916 R2 = 0.9974 2.9 2.7 2.5 294 296 298 300 304 306 308 302 Temperature (K) Temperature vs Wavelength Change Temperature K Wavelength Change 296.17 -2.4 302.15 -2.78 307.15 -3.2 -2 -2.2 -2.4 -2.6 Change in Wavelength E -2.8 -3 y = -0.0726x + 19.107 R2 = 0.9936 -3.2 -3.4 295 297 299 305 307 309 301 303 Temperature (K)