Living Histogram

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Department members created a "living histogram" by arranging themselves in columns according to their height. The histogram has two "bumps" (modes) corresponding to the average height of men and women in the department. If we were to create separate histograms for men and women, we would see two approximately normal distributions centred at these modes. When we create the histogram with men and women together, we say that their heights can be described by a mixture distribution.