Question 2 0 outef'l points Determine the uncertainty, in the experimental mass using the information shown in the graph: acceleration vs applied...

I am having trouble understanding the steps for calculating uncertainty. I have gotten my grade for the assignment and my process for calculating uncertainty is wrong and I would appreciate any guidance from anyone. Please don't flag saying I am going to use your answer as my own as I am doing this so I understand the concept since I have already submitted the assignment for my final grade. I wan't understanding.

Thank you