Question: What is the main limitation of using accuracy as a metric?

Options:

1. It does not account for class imbalance
2. It is difficult to calculate
3. It only applies to binary classification
4. It requires a large dataset

Correct Answer: It does not account for class imbalance

Solution:

Accuracy can be misleading in imbalanced datasets, as it may give a false sense of model performance by not reflecting the true predictive power for minority classes.