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Identify the error in this code snippet:

medium📝 Debug Q14 of 15
Matplotlib - Real-World Visualization Patterns
Identify the error in this code snippet:
import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [4, 5])
plt.show()
AThe x and y lists have different lengths
Bplt.plot() is missing parentheses
Cplt.show() should be called before plt.plot()
DThe import statement is incorrect
Step-by-Step Solution
Solution:
  1. Step 1: Check the data lengths

    The x list has 3 elements, but the y list has only 2 elements.
  2. Step 2: Understand matplotlib requirements

    For plotting, x and y must have the same length to pair points correctly.
  3. Final Answer:

    The x and y lists have different lengths -> Option A
  4. Quick Check:

    Unequal list lengths cause error = D [OK]
Quick Trick: Ensure x and y lists have same length for plt.plot() [OK]
Common Mistakes:
  • Thinking plt.plot() needs no parentheses
  • Calling plt.show() before plotting
  • Misunderstanding import syntax

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