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Identify the error in this Python code intended to compute a neural network output:

medium📝 Analysis Q6 of 15
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Identify the error in this Python code intended to compute a neural network output:
inputs = [1, 3]
weights = [0.5, 0.5]
output = sum(inputs * weights)
ACannot multiply two lists directly with * operator
BMissing parentheses in sum function
CWeights list is too short
DInputs list contains invalid values
Step-by-Step Solution
Solution:
  1. Step 1: Understand list multiplication

    In Python, multiplying two lists directly (inputs * weights) is invalid and causes an error.
  2. Step 2: Correct approach

    Use element-wise multiplication with a loop or comprehension, e.g., sum(i * w for i, w in zip(inputs, weights))
  3. Final Answer:

    Cannot multiply two lists directly with * operator -> Option A
  4. Quick Check:

    List multiplication misuse identified [OK]
Quick Trick: Lists can't be multiplied directly in Python [OK]
Common Mistakes:
  • Trying to multiply lists directly
  • Confusing list multiplication with scalar multiplication
  • Ignoring need for element-wise operations

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