标签：with div pre for mes dba function drawing raw
You have a bucket with 3 red balls and 3 green balls. Assume that once you draw a ball out of the bucket, you don‘t replace it. What is the probability of drawing 3 balls of the same color?
Write a Monte Carlo simulation to solve the above problem. Feel free to write a helper function if you wish.
def noReplacementSimulation(numTrials):
‘‘‘
Runs numTrials trials of a Monte Carlo simulation
of drawing 3 balls out of a bucket containing
3 red and 3 green balls. Balls are not replaced once
drawn. Returns the a decimal - the fraction of times 3
balls of the same color were drawn.
‘‘‘
# Your code here
sameColorNum = 0.0
for i in range(numTrials):
redBallNum , buleBallNum = 0.0, 0.0
balls = [0, 0, 0, 1, 1, 1]
for k in range(3):
draw = random.choice(balls)
balls.remove(draw)
if draw == 0:
redBallNum += 1
else:
buleBallNum += 1
if redBallNum == 3 or buleBallNum == 3:
sameColorNum += 1
return sameColorNum / numTrials
noReplacementSimulation(100000)
0.10043
标签：with div pre for mes dba function drawing raw
原文地址：https://www.cnblogs.com/wbloger/p/10066155.html
