The costs of sampling errors and bias to the mining industry
Richard C.A. Minnitt School of Mining Engineering, University of the Witwatersrand, Private Bag 3, 2050 South Africa. E-mail: [email protected]
This is Richard Minnitt’s regular contributing presentation at WCSB8, Perth. This presentation is another example of a subject matter that lends itself eminently to graphic rendition, which is the exact reason it was decided also to bring this feature in its original PowerPoint format; the presentation layout and style is overwhelmingly pleasing. There is here a wealth of information regarding an issue which is often lamented as lacking: what are the economic costs of inferior sampling. Richard Minnitt here collects a range of illustrative examples that will serve well for all samplers trying to convey the everlasting massage: “It pays to pay attention to unnecessary sampling errors and—bias”.