Comparing Histograms: A Frequency Analysis

00:00 4 marks

  • Build Confidence
  • HL
  • Tier 2
  • Comparative analysis
  • Histograms
  • Central Tendency
  • Distribution shape
  • Spread

Two histograms display the frequency distribution of data from two separate studies. Compare the two histograms and identify at least two major differences in their distributions. In your response, clearly compare and contrast their shape, spread, and central tendency.

Hint Hint

Hint

When comparing the histograms, consider using comparative adjectives (e.g., wider, narrower, more skewed). For shape, think about symmetry, skewness, and the number of modes. For spread, consider the range or IQR. For central tendency, think about the mode or median location relative to each distribution.

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Complete Answer

Histogram 1 exhibits a roughly symmetric, unimodal shape with its center around the median value, and a relatively smaller spread indicated by its IQR. In contrast, Histogram 2 is skewed to the right, appears bimodal with peaks at lower and higher values, and demonstrates a larger spread as seen by its wider IQR compared to Histogram 1.

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  • Common Errors Common Errors
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