READ_ONLY_ACCESS
[
  {
    "id": "stats1-w03-000",
    "front": "Week 3 Diagnostic: For the dataset [3, 7, 8, 5, 12, 14, 21, 13, 18], what is the median?",
    "back": "Answer: 12 — Sorted dataset: [3, 5, 7, 8, 12, 13, 14, 18, 21]. With n = 9, the median is the 5th element: 12."
  },
  {
    "id": "stats1-w03-001",
    "front": "Week 3 Diagnostic: If a distribution has a third quartile Q3 = 45 and a first quartile Q1 = 25, what is the Interquartile Range (IQR)?",
    "back": "Answer: 20 — IQR = Q3 - Q1 = 45 - 25 = 20."
  }
]