AI for Everyone - How AI Models Actually Work
You want to build a simple neural network that takes three inputs and produces one output by multiplying each input by a weight and summing them. Which Python code correctly implements this?
You want to build a simple neural network that takes three inputs and produces one output by multiplying each input by a weight and summing them. Which Python code correctly implements this?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the neural network output formula
Output is sum of each input multiplied by its weight.Step 2: Match code to formula
output = sum(i * w for i, w in zip(inputs, weights)) uses zip to pair inputs and weights, multiplies pairs, then sums them.Final Answer:
output = sum(i * w for i, w in zip(inputs, weights)) -> Option BQuick Check:
Correct weighted sum code = output = sum(i * w for i, w in zip(inputs, weights)) [OK]
Quick Trick: Use zip and sum for weighted sums in neural nets [OK]
Common Mistakes:
- Trying to multiply lists directly
- Adding lists instead of multiplying
- Returning list instead of sum
Master "How AI Models Actually Work" in AI for Everyone
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore AI for Everyone Quizzes