- #1

- 4

- 0

121

123

125

100

123

123

101

146

122

140

The question says.

1. Calculate the average of the data... No problem I can do that, my answer is 122.4

2. Determine the uncertainty for the average value. < This is the part that blows my mind. There are literally hundreds of methods for this and I am not sure what to use... My working out so far is as follows:

Using the information in this link.

http://virgo-physics.sas.upenn.edu/uglabs/lab_manual/Error_Analysis.pdf

It says.

The uncertainty in the each measurement is (Max-min)/2

The uncertainty in the the average = uncertainty in each measurement/(sqrt(N))

which is 23/(sqrt10) = 7.27 or 7.

answer to the whole question = 122 +/- 7

Am I thinking about this correctly? or missing it completely?