fig = plt.figure(figsize=(10,10))
sns.distplot(df_bin.loc[df_bin['Survived'] == 1]['Sex'], kde_kws={'label': 'Survived'})
sns.distplot(df_bin.loc[df_bin['Survived'] == 0]['Sex'], kde_kws={'label': 'Did not survive'})

Survived    Pclass  Sex
    0   0   3   0
    1   1   1   1
    2   1   3   1
    3   1   1   1
    4   0   3   0