Subject
Computer Science
Topic
Artificial Intelligence
In the figure, a binary node contains class counts 6 and 2. What is its entropy in bits, rounded to three decimals?
In the figure, a binary node contains class counts 6 and 2. What is its entropy in bits, rounded to three decimals?
a)
0.936b)
0.189c)
0.811d)
0.406Explanation
The class shares are 6/8 = 0.75 and 2/8 = 0.25. Entropy = −0.75 log2 0.75 − 0.25 log2 0.25 ≈ 0.311 + 0.500 = 0.811 bits.Related questions
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