# Linear Regression

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## Statical tools
Numpy comes with some useful statistical tools that we can use to analyze our data.

### Mean
The mean is the average of a set of numbers. It is calculated by summing all the numbers and dividing by the count of numbers.

```python
import numpy as np

mean = np.mean([1, 2, 3, 4, 5])
median = np.median([1, 2, 3, 4, 5])
std = np.std([1, 2, 3, 4, 5])
variance = np.var([1, 2, 3, 4, 5])
```



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