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Find the mistake in this code snippet:

medium📝 Debug Q7 of 15
SciPy - Constants and Special Functions
Find the mistake in this code snippet:
from scipy.special import erf
import numpy as np
x = np.array([1, 2, '3'])
result = erf(x)
ATypeError due to mixed data types in numpy array
BValueError because erf cannot handle arrays
CSyntaxError in import statement
DNo error, code runs correctly
Step-by-Step Solution
Solution:
  1. Step 1: Analyze numpy array contents

    The array contains integers and a string, causing mixed types.
  2. Step 2: Understand effect on erf

    erf expects numeric inputs; mixed types cause a TypeError during computation.
  3. Final Answer:

    TypeError due to mixed data types in numpy array -> Option A
  4. Quick Check:

    Mixed types cause TypeError in erf [OK]
Quick Trick: Numpy arrays must have uniform numeric types for erf [OK]
Common Mistakes:
MISTAKES
  • Assuming automatic type conversion
  • Confusing ValueError with TypeError

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