sympy.stats.Chi() in Python

sympy.stats.Poisson() in Python

Last Updated : 29 Jul, 2024

With the help of sympy.stats.Poisson() method, we can get the random variable representing the poisson distribution.

Syntax : sympy.stats.Poisson(name, lambda)Return : Return the random variable.

Example #1 :

In this example we can see that by using sympy.stats.Poisson() method, we are able to get the random variable representing poisson distribution by using this method.

Python3 1=1

# Import sympy and poisson
from sympy.stats import Poisson, density, E, variance
from sympy import Symbol, simplify

# Using sympy.stats.Poisson() method
rate = Symbol("lambda", positive = True)
X = Poisson("x", rate)
gfg = density(X)(4)

print(gfg)

Output :

lambda**4*exp(-lambda)/24

Example #2 :

Python3 1=1

# Import sympy and poisson
from sympy.stats import Poisson, density, E, variance
from sympy import Symbol, simplify

# Using sympy.stats.Poisson() method
rate = Symbol("lambda", positive = True)
X = Poisson("x", rate)
gfg = density(X)(6)

print(gfg)

Output :

lambda**6*exp(-lambda)/720

sympy.stats.Chi() in Python

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