Question

Find the range.

3 –9 7 –1 5 –4 2


2


16


8


–1

Answer 1

the answer is 16

Answer 2

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`.