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#!/usr/bin/env python3
"""
Matmod exercise 02
ported to python by https://github.com/SpaceLenore
import math
def truncate(f, n):
return math.floor(f * 10 ** n) / 10 ** n
def factorial(n):
""" Calculate the factorial of the integer n """
val = 1
for value in range(1, n + 1):
val = val * value
return val
def bin(trials, population, probability):
""" Calculate the probability binomial distribution Pr(X = x) """
# x = trials
# n = population
# p = probability
bern = ((1 - probability)**(population-trials))*probability**trials
bincof = factorial(population) / (factorial(trials) * factorial(population - trials))
binpro = bern * bincof
return round(binpro, 3)
def cumulative_bin(trials, population, probability):
""" Calculate the probability binomial distribution Pr(X <= x) """
sumtotal = 0;
for xval in range(trials + 1):
sumtotal += bin(xval, population, probability)
return round(sumtotal, 3)
SpaceLenore /
matmod-python-exercises
