Plot normal distribution in 3D
<p>I am trying to plot the comun distribution of two normal distributed variables. </p>

<p>The code below plots one normal distributed variable. What would the code be for plotting two normal distributed variables?</p>

<pre><code>import matplotlib.pyplot as plt
import numpy as np
import matplotlib.mlab as mlab
import math

mu = 0
variance = 1
sigma = math.sqrt(variance)
x = np.linspace(-3, 3, 100)
plt.plot(x,mlab.normpdf(x, mu, sigma))

plt.show()
</code></pre>