I have a general question about calculating error.

Though it is an overestimate method that one of the technical professors mentioned where you can develop a range for error by simply using the most extreme values for equation inputs.

For example, if a = 1 +/- 0.1 and b = 1 +/- 0.1, then a x b would be 1, and would range from .9 x .9 to 1.1 x 1.1

This method is far less rigorous and could yield large overestimates, but it would be conservative (potentially a good thing) and would massively simply calculations. If we did the error calculations the proper way for a, w, PQ, B, Young's modulus, and yield strength for 3 different sections worth of data, it seems like we would be working on this report until December.