Calculating The Standard Deviation: An Example

Meas. # Value (m)
1 1.18
2 1.16
3 1.18
4 1.19
5 1.21
These might be helpful:
  Sxi = 5.92 m
  Sxi2 = 7.0106 m2
On the left is a set of data. Using either Expression (2) or (3) from the previous page, calculate the best estimate s of the SD based on this data set. Check the next page for the full solution, but only after you've gone through the calculations.