Can someone help me figure out the problem, my last test doesn’t pass?
Your code so far
import copy
import random
class Hat:
def __init__(self, **kwargs):
self.contents = []
for color, count in kwargs.items():
for i in range(count):
self.contents.append(color)
def draw(self, amount):
if amount >= len(self.contents):
drawn_list = []
for i in random.sample(self.contents, k = len(self.contents)):
drawn_list.append(i)
self.contents.clear()
return drawn_list
else:
drawn_list = []
for i in random.sample(self.contents, k=amount):
drawn_list.append(i)
self.contents.remove(i)
return drawn_list
def experiment(hat, expected_balls, num_balls_drawn, num_experiments):
M = 0
key = []
value = []
copies = []
actual = []
for i in expected_balls.keys():
key.append(i)
for i in expected_balls.values():
value.append(i)
for i in range(num_experiments):
copies = copy.copy(hat)
actual.append(copies.draw(num_balls_drawn))
for n in actual[i]:
copies.contents.append(n)
for n in range(num_experiments):
flag = 0
for i in range(len(expected_balls)):
if actual[n].count(key[i]) < value[i]:
flag += 1
if flag == 0:
M += 1
return M/num_experiments
hat = Hat(black=6, red=4, green=3)
probability = experiment(hat=hat,
expected_balls={'red':2, 'green':1},
num_balls_drawn=5,
num_experiments=2000)
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Challenge Information:
Build a Probability Calculator Project - Build a Probability Calculator Project
this one is tricky and has been left behind, you would not find it in the new updated curriculum.
Are you sure you don’t want to try the new curriculum?
anyway, you are failing a test that uses an hat that has contents as ['blue', 'blue', 'blue', 'red', 'red', 'green', 'green', 'green', 'green', 'green', 'green'] expected_balls is {'blue': 2, 'green': 1} , num_balls_drawn is 4, and num_experiments is 1000
(the expected probability is 0.272)
you can try using a different method in draw instead of sample
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import copy
import random
class Hat:
def __init__(self, **kwargs):
self.contents = []
for color, count in kwargs.items():
for i in range(count):
self.contents.append(color)
def draw(self, amount):
if amount >= len(self.contents):
drawn_list = []
for i in random.sample(self.contents, k = len(self.contents)):
drawn_list.append(i)
self.contents.clear()
return drawn_list
else:
drawn_list = []
for i in random.sample(self.contents, k=amount):
drawn_list.append(i)
self.contents.remove(i)
return drawn_list
def experiment(hat, expected_balls, num_balls_drawn, num_experiments):
M = 0
key = []
value = []
copies = []
actual = []
for i in expected_balls.keys():
key.append(i)
for i in expected_balls.values():
value.append(i)
for i in range(num_experiments):
copies = copy.copy(hat)
actual.append(copies.draw(num_balls_drawn))
for n in actual[i]:
copies.contents.append(n)
for n in range(num_experiments):
flag = 0
for i in range(len(expected_balls)):
if actual[n].count(key[i]) < value[i]:
flag += 1
if flag == 0:
M += 1
return M/num_experiments
hat = Hat(blue=3, red=2, green=6)
probability = experiment(hat=hat,
expected_balls={'blue':2, 'green':1},
num_balls_drawn=4,
num_experiments=1000)
print(probability)
I am testing your code and I see a different number each time. Please maybe try a different method that is not sample. Or keep running the tests until it accidentally passes
