Advanced Mine Valuation Certificate Exam Practice Questions - Advanced Certificate In Mine Valuation (South Africa) Exam

Why is a Lagrange multiplier (mu) introduced into the system of linear equations for Ordinary Kriging?

To minimize the variance of estimation while ensuring the kriging weights sum to 1.0 (unbiasedness constraint) To force the kriging weights to always remain positive To convert non-stationary grade trends into stationary Gaussian distributions To eliminate the nugget effect from the sample covariance matrix

Correct Answer:

To minimize the variance of estimation while ensuring the kriging weights sum to 1.0 (unbiasedness constraint)

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