import math

def poisson_distribution(l, k):
	return l**k * math.e**(-l) / math.factorial(k)

if __name__ == '__main__':
	result = 0
	# for i in range(0, 4):
	result += poisson_distribution(2.5, 5)
	print(round(result, 3))
d67d30441fc0c31c28d2a77004342e13e28b7255
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def poisson_distribution(l, k):
    return l ** k * math.e ** -l / math.factorial(k)


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<mask token>


def poisson_distribution(l, k):
    return l ** k * math.e ** -l / math.factorial(k)


if __name__ == '__main__':
    result = 0
    result += poisson_distribution(2.5, 5)
    print(round(result, 3))

import math


def poisson_distribution(l, k):
    return l ** k * math.e ** -l / math.factorial(k)


if __name__ == '__main__':
    result = 0
    result += poisson_distribution(2.5, 5)
    print(round(result, 3))

import math

def poisson_distribution(l, k):
	return l**k * math.e**(-l) / math.factorial(k)

if __name__ == '__main__':
	result = 0
	# for i in range(0, 4):
	result += poisson_distribution(2.5, 5)
	print(round(result, 3))