Re: Radon Health Risks

[RuthWeiner@AOL.COM]

In a message dated 1/22/02 11:34:06 AM Mountain Standard Time, dkosloff1@EMAIL.MSN.COM writes:



> What are precision problems (as opposed to accuracy problems)?  


Accuracy is conformity to a "true" value.  That is, a measuring instrument is accurate if it gives you the same measurement as other calibrated instruments give -- a measurement that has been independently confirmed to be real.


Precision is an indication of the uncertainty in the measurement -- e.g., the number of significant figures the measuring instrument reliably gives.


 

Ruth Weiner, Ph. D.

ruthweiner@aol.com