Random Combinations

• Urn with three white balls numbered 1, 2, and 3

• Randomly draw two and paint them black

• 6 Permutations: 1, 2; 1, 3; 2, 1; 2, 3; 3, 1; 3, 2
• 3 Combinations: w1b2b3, b1w2b3, b1b2w3

• Randomly draw one and paint it black

• 3 Permutations: 1; 2; 3
• 3 Combinations: w1w2b3, w1b2w3, b1w2w3

• Randomly draw three and paint them black

• 6 Permutations but just one combination: b1b2b3