Probability Simulator

Project Overview

Write a program to simulate probability in some way, optionally graphing the results. This challenge started 2021 Jan 12 and ended 2021 Jan 26.

Submissions

Kat Crawford

import turtle as trtl
import random

wn = trtl.Screen()
dice = trtl.Turtle()
writer = trtl.Turtle()
grapher = trtl.Turtle()

icon = "icon.gif"
wn.addshape(icon)

dice.shape(icon)

writer.hideturtle()
writer.pencolor('white')
writer.penup()
writer.goto(0, -25)


grapher.hideturtle()
grapher.shape('circle')
grapher.speed(0)
grapher.turtlesize(1)
grapher.pensize(2)
grapher.penup()
grapher.goto(-200, -120)
grapher.pendown()
grapher.goto(-500, -120)
grapher.left(90)

for i in range(20):
    grapher.forward(20)
    grapher.right(90)
    grapher.forward(20)
    grapher.backward(20)
    grapher.left(90)

x_position = -500

def roll(x,y):
    global x_position
    writer.clear()
    number = random.randint(1,20)
    y_position = number * 20 - 120
    if x_position < -200:
        grapher.goto(x_position, y_position)
        grapher.stamp()
        x_position += 20
    writer.write(str(number), align = 'center', font = ("Helvetica", 50))

dice.onclick(roll)

wn.mainloop()

Benjamin Lowry

from random import choice
import turtle
maxtrials = int(input("Number of trials? "))
heads = 0
tails = 0
t = turtle.Turtle()
t.hideturtle()
t.speed(0)

def drawgraph():
    scale = int(200 / (heads + tails))
    t.clear()
    t.penup()
    t.goto(-10, 200)
    t.write("100%")
    t.goto(-10, 150)
    t.write("75%")
    t.goto(-10, 100)
    t.write("50%")
    t.goto(-10, 50)
    t.write("25%")
    t.goto(-10, 0)
    t.write("0%")
    t.goto(50, -20)
    t.write("Heads (" + str(heads) + ")")
    t.goto(150, -20)
    t.write("Tails (" + str(tails) + ")")
    t.goto(0,200)
    t.pendown()
    t.seth(270)
    t.forward(200) # y axis
    t.seth(0)
    t.forward(200) # x axis

    # heads bar
    t.penup()
    t.goto(50, 0)
    t.pendown()
    t.seth(90)
    t.forward(scale*heads)
    t.seth(0)
    t.forward(50)
    t.seth(270)
    t.forward(scale*heads)

    # tails bar
    t.penup()
    t.goto(150, 0)
    t.pendown()
    t.seth(90)
    t.forward(scale*tails)
    t.seth(0)
    t.forward(50)
    t.seth(270)
    t.forward(scale*tails)

while heads + tails < maxtrials:
    if choice([True, False]):
        heads += 1
    else:
        tails += 1
    drawgraph()

turtle.Screen().mainloop()

Will Stark

import random as r
import turtle as trtl
sides = int(input("How many sides?"))
output = r.randint(1, sides)
t = trtl.Turtle()
t.penup()
t.backward(100)
while output > 0:
    t.pendown()
    t.left(90)
    t.forward(50)
    t.penup()
    t.backward(50)
    t.right(90)
    t.forward(10)
    output = output - 1



wn = trtl.Screen()
wn.mainloop()