- A11
- B6.5
- C5.5
- D4.5
Step-by-Step Solution
Sort: 2, 3, 4, 5, 6, 7, 8, 9. Even count (8). Middle two are the 4th and 5th: 5 and 6. Median = (5+6)/2 = 5.5.
Answer: C) 5.5
Find the median of the eight numbers 3, 9, 5, 7, 2, 8, 6, 4.
Class 7Data HandlingData Handling
Key idea: Median — the middle value
Step 1: arrange the data in **ascending order**. Step 2: find the middle.
- **Odd count**: the middle value is the median. Marks 3, 5, 7, 9, 11 → median = 7.
- **Even count**: average the two middle values. Marks 3, 5, 7, 9 → middle two are 5 and 7 → median = (5+7)/2 = 6.
Median ignores extreme values; it tells you the 'typical middle' regardless of outliers.
- **Odd count**: the middle value is the median. Marks 3, 5, 7, 9, 11 → median = 7.
- **Even count**: average the two middle values. Marks 3, 5, 7, 9 → middle two are 5 and 7 → median = (5+7)/2 = 6.
Median ignores extreme values; it tells you the 'typical middle' regardless of outliers.
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