Python Puzzles
You process a deck with 50 cards that has an unknown and random number of red and black cards. What is the probability of drawing a red card from the deck?
The probability is 50%.
import random import numpy as np deck = [] red = 0 size = 1_000_000 for _ in range(size): number_red_cards = random.randrange(0,51) pct_red = 0 if number_red_cards == 0 else number_red_cards/50 deck.append(np.random.binomial(size=1, n=1, p=pct_red)) for x in deck: if x == 1: red += 1 print('The probability is ' + '{0:.2%}'.format(red/size))