Example · Elementary
Terms
| Term | This example | Why |
|---|
| range statistics |
$7$
|
The range of the data is the largest value minus the smallest, $9 - 2 = 7$.
|
| arithmetic mean |
$\frac{16}{3}$
|
$\frac{2 + 5 + 9}{3} = \frac{16}{3}$
|
| median |
$5$
|
$\operatorname{median}(2, 5, 9) = 5$
|
| variance |
$\frac{74}{9} \approx 8.22$
|
$\frac{(2 - \frac{16}{3})^2 + (5 - \frac{16}{3})^2 + (9 - \frac{16}{3})^2}{3} = \frac{74}{9}$
|
| standard deviation |
$\sqrt{74 / 9} \approx 2.87$
|
|
Distinctions using this example
All examples · All distinctions · All definitions