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Critical limit 2
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The distribution in S can be plotted as a probability distribution.

Note, it is centred about zero because it represents the distribution of repeated measurements (net counts) when the sample activity is zero.

The critical limit Lc=kso is the point above which S is likely to be significant, i.e. not consistent with zero.

The likelihood depends on the choice of Lc (or k).


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1999, 2000 The University of Liverpool, Department of Physics

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