Pandas Series

$$Mean = \int_0^{2\pi} \sin(x)\,dx$$ $$\mu = \frac{\sum_{i=1}^n x_i}{n}$$ $$\text{Median} = \frac{X_{\frac{n}{2}} + X_{\frac{n}{2}+1}}{2}$$ $${\displaystyle\text{Mean} = {\frac {1}{n}}\sum _{i=1}^{n}a_{i}={\frac {a_{1}+a_{2}+\cdots +a_{n}}{n}}}$$