Biomedical Engineering Reference
In-Depth Information
STATISTICAL TOPICS AND ANALYSIS
IN RISK ASSESSMENT
MIKE LONG
As we know,
There are known knowns.
There are things we know we know.
We also know
There are known unknowns.
That is to say
We know there are some things
We do not know.
But there are also unknown unknowns,
The ones we don't know
We don't know.
—Donald Rumsfeld Feb. 12, 2002, U.S. Department of
Defense news briefing. Wording arranged by Slate Magazine in the article
The Poetry
of Donald Rumsfeld
, April 3, 2003.
The only thing certain is Uncertainty.
—Anonymous
4.1
INTRODUCTION
Understanding probability and its role in the field of statistics is critical for a
mature level of understating of risk management. This chapter does not make an
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