Homework

Question Recap: Which is LEAST likely to improve the model’s accuracy?

Answer: C – Removing as many details from the model as possible so that calculations can be performed quickly.

import random

def roll_dice():
    """Simulates a 6-sided dice roll."""
    return random.randint(1, 6)

# Simulate and print a dice roll
print("Dice roll:", roll_dice())

Dice roll: 6

import random

def biased_color():
    """Generates biased color with:
    - Red (50%)
    - Blue (30%)
    - Other colors (20% combined)
    """
    colors = ["Red", "Blue", "Green", "Yellow", "Purple"]
    probabilities = [0.5, 0.3, 0.066, 0.067, 0.067]  # Total = ~1.0

    return random.choices(colors, probabilities)[0]

# Print 10 biased random colors
for _ in range(10):
    print("Color:", biased_color())

Color: Red
Color: Red
Color: Red
Color: Red
Color: Blue
Color: Blue
Color: Red
Color: Yellow
Color: Purple
Color: Yellow

import random

def coin_flip_game():
    player1_heads = 0
    player2_heads = 0
    rounds = 0

    while player1_heads < 3 and player2_heads < 3:
        rounds += 1
        # Player 1 flip
        if random.choice(["heads", "tails"]) == "heads":
            player1_heads += 1

        # Player 2 flip
        if random.choice(["heads", "tails"]) == "heads":
            player2_heads += 1

        print(f"Round {rounds}: Player 1 = {player1_heads} heads, Player 2 = {player2_heads} heads")

    # Declare the winner
    if player1_heads == 3:
        print(f"Player 1 wins in {rounds} rounds!")
    else:
        print(f"Player 2 wins in {rounds} rounds!")

coin_flip_game()

Round 1: Player 1 = 1 heads, Player 2 = 1 heads
Round 2: Player 1 = 2 heads, Player 2 = 2 heads
Round 3: Player 1 = 2 heads, Player 2 = 2 heads
Round 4: Player 1 = 2 heads, Player 2 = 3 heads
Player 2 wins in 4 rounds!