Considering our linearisation, determine (via the method in python and uncertainties) a symbolic expression for the uncertainty in our desired Y variable, using "T" as the symbol for average times and "n" as the symbol for number of masses.  and placing a u in front of each of these for the uncertainty in these variables (e.g. uT, and un). YOU MUST USE THESE SYMBOLS WITH THE SAME CAPITALISATION.

Then, print the symbolic expression and copy and paste the output of this print call directly into the input cell below without any changes. 

E.g. if the variable into which you have stored the symbolic expression is called expr_u_y, then add the line

print(expr_u_y)

to your code and copy from the terminal or console the output that this line generates and paste this into the text cell below without any editing. 

IMPORTANT NOTE: This uncertainty expression is fairly easy to determine, however, make sure to use the method in Python and uncertainties and to print the result of that, part of the assessment for labs is specifically learning python, so it is important to practice the coding, and this question can only be answered correctly if you use the python method of Python and Uncertainties.