These self-assessment problems accompany the mini course Key Statistical Concepts for Geomatics Networks.
Imagine you’re given the situation shown below where the azimuths of points , , and are each measured at point , and found to have the values and standard deviations shown in the table.
a) Compute the angles and , and use propagation of errors to calculate their variance-covariance matrix
b) Find the error correlation coefficient between the angles and
c) Interpret the sign of the off-diagonal elements of the variance-covariance matrix, and the sign of the error correlation coefficient