Update dataset_previews.py

dataset_previews.py

@@ -33,7 +33,7 @@ def calculate_dataset_statistics():
             test_samples = test_df[test_df['category'] == subject]
             num_questions = len(test_samples)
             subject_counts[subject] = num_questions
-            print("Test_samples", test_samples[0], "\t Num Questions:", num_questions)
+            print("First sample", test_samples.head(1), "\t Num Questions:", num_questions)
             
             # Count options for each question
             for sample in test_samples: