The range is the distance between the minimum data value and the maximum: \(\text{Maximum value}-\text{Minimum value}=\text{Range}\)
\(\text{Given values: }3, -9, 7, -1, 5, -4, -2\)
Your minimum value is -9.
Your maximum value is 7.
Therefore: \(\text{Range}\rightarrow\text{Maximum value}-\text{Minimum value}\rightarrow7-(-9)\)
\(\rightarrow\text{Subtracting Negative Values}\rightarrow7+9=16\)
**Subtracting a negative value \(-a\) is like adding the product \((-1)(-a)\), which would translate to the same thing as adding the product \((1)(a)\), or adding \(a\).
