Lesson eLearning

Given the data set of students' scores: 7, 12, 19, 25, 34, 44, 48, find the range of the data and the median. Explain what these measures tell us about the distribution of the scores.

medium 4 marks Class 6 · Mathematics · Data Handling
Answer
Range = 41, Median = 25

The correct answer is Range = 41, Median = 25 — Interpretation: The range of shows a wide spread of scores, while the median of indicates that half the students scored below and half scored above. This suggests a moderate central tendency with considerable variability.

Step-by-step solution

  1. Order the data in ascending order (already ordered).
  2. Find the minimum value: and the maximum value: .
  3. Calculate the range: .
  4. With numbers, the median is the value in the ordered list: .
  5. Interpretation: The range of shows a wide spread of scores, while the median of indicates that half the students scored below and half scored above. This suggests a moderate central tendency with considerable variability.
Common mistake: Not sorting the data before finding the median

Concept tested: Range and Median

Published · How this solution was prepared and checked

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