 Stressor = Good)}{P(Response =
Poor)},\]</span> where <span class="math inline">\(P(\cdot)\)</span> is
a probability and <span class="math inline">\(P(\cdot | \cdot)\)</span>
is a conditional probability. The attributable risk measures the
proportion of the response variable in poor condition that could be
eliminated if the stressor was always in good condition. To estimate the
attributable risk of benthic macroinvertebrates with a phosphorous
condition stressor, run</p>
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