Question

Error Propagation:

Experiment was to find the dimensions of a table. We were given 50 sets of values.

From those values, I found the mean and standard deviation.

Dimensions., cm	Mean Value, cm	Standard Deviation, cm	Error (stand. dev. of mean), cm
Width	75.94	1.096	0.0219
Length	182.2	1.184	0.0237

What I need:

1. Error or standard deviation of the mean for both length and width. Which is the equation: standard deviation/50.

For width I got 0.0219 cm

Length is 0.0237 cm.

2. The area of the table using the means. I got 13836.268 cm².

3. Calculate the error in the area. This is where I am completely lost. We were not given a true value.

This is an online physics lab. Our entire class is confused and the TA seems unavailable. I've completed the lab, I just need my numbers checked and then total help with the error of the area. I calculated it...and then I seem to be lost. I have never taken physics in my life, keep that in mind!

Answer 1