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Negative Predictive Value

The negative predictive value is the proportion of negative results in statistics and diagnostic tests that are true negative results.

The negative predictive value equals the true negatives divided by the sum of the true negatives and false negatives.

Formula

QuantityVariable["npv", "Unitless"] == QuantityVariable["tn", "Unitless"]/(QuantityVariable["fn", "Unitless"] + QuantityVariable["tn", "Unitless"])

symbol description physical quantity
npv negative predictive value "Unitless"
tn true negatives "Unitless"
fn false negatives "Unitless"

Forms

Examples

Get the resource:

In[1]:=
ResourceObject["Negative Predictive Value"]
Out[1]=

Get the formula:

In[2]:=
FormulaData[ResourceObject["Negative Predictive Value"]]
Out[2]=

Use some values:

In[3]:=
FormulaData[ ResourceObject[ "Negative Predictive Value"], {QuantityVariable["tn","Unitless"] -> 22, QuantityVariable["fn","Unitless"] -> 2}]
Out[3]=

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