#!/usr/bin/env python
# coding: utf-8

# # [Goulib](../notebook.ipynb).stats
# very basic statistics functions

# In[1]:


from Goulib.notebook import *
from Goulib.stats import *


# ## Discrete distributions

# In[2]:


dice=Discrete(range(1,6+1))
dice


# In[3]:


Y=Discrete({1:0.2, -1:0.8})
Y


# In[9]:


X=Discrete({-2:0.15,-1:.2,0:.3,1:.2,2:.15})
X**2+Y


# ## Normal distribution

# In[5]:


n1=Normal()
print(n1)
n1


# In[6]:


n2=Normal([],4,4)
n2


# In[7]:


n1+n2


# In[8]:


plot.plot([n1,n2,n1+n2])