การกำหนดกลุ่มทดลองแบบสุ่ม

# Randomly assign half
group1_random = weights.____(____, random_state=42, ____)

# Create second assignment
group2_random = weights.____(group1_random.____)

# Compare assignments
compare_df_random = pd.concat([group1_random['weight'].____, group2_random['weight'].____], axis=1)
compare_df_random.columns = ['group1', 'group2']
print(compare_df_random)