Generate Binary Outcome Random Outcome Given A Probability

Question

I am designing code in Python that needs to generate a random outcome given a probability.

Example: There are two possible outcomes: attack or no attack. Given a probability of 25% of an attack occurring, how do I generate an outcome based on that probability?

Answer 1

Let represent 1 for ATTACK and 0 for NO-ATTACK and we create a att_or_not list in which selecting 1 is 0.25 so we use random.randint(0, 3) to select a item from list. Check out logic here

import random
rand_num = random.randint(0, 3)
def prob(rand_num, list_):
    if list_[rand_num]:
        return 'Attack'
    
    return 'No-Attack'
# [1, 0, 0, 0] => here 1 represent ATTACK and 0 represent NO_ATTACK
att_or_not = [1, 0, 0, 0]

result = prob(rand_num ,att_or_not)

print(result)