import numpy as np
import matplotlib as plot
import seaborn as sns

x1 = np.array([0.0, 0.0, 0.0, 0.0, 0.5, -0.12500000000000003, 0.0, -0.4, 0.0, 0.25])

## Simple histogram, weighted to reveal probabilities
plt.hist(x1, weights=np.ones(len(x1))/len(x1));

## Histogram + kde, but clearly something has gone wrong
sns.distplot(x1, hist=True, kde=True)