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Gold/Mining/Energy : ASHTON MINING OF CANADA (ACA)
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To: Michael Markham who wrote (3859)2/10/1998 11:10:00 PM
From: maintenance   of 7966
 
The size of the sample relative to the entire area under consideration is what determines how representative the sample is. It is the same thing when polls are conducted. They always include or should include a confidence interval. Somthing like "accurate to within 5%". A sample of a kimberlite pipe that is .21t and contains .28C would have a confidence interval near zero. If you were to sample the entire pipe you would have a confidence interval of perfect or accurate to within 0%. As the smple size gets smaller the accuracy gets poorer. This is particularly true if what you are trying to prove is expected to be small relative to the size of the whole. In the case of diamonds in a pipe we would expect there to be a lot more material that is not diamond than is diamond.
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