Uni-modal

Uni-modal refers to a statistical distribution or dataset characterized by a single peak or mode. It means that the data clusters around one central value, indicating that a single feature or characteristic is most prevalent or frequently occurring within the observed group. In a uni-modal distribution, the values typically increase to a peak and then decrease, forming a bell-shaped curve (though not always symmetrical), suggesting that values closer to the mode are more probable than values further away. This contrasts with distributions having multiple peaks (multi-modal) or no distinct peak (uniform).

Uni-modal meaning with examples

• The heights of students in a class are often uni-modal, peaking around the average height. Most individuals cluster around this central value. A histogram of the heights would show a clear peak, revealing the commonality. This suggests a single dominant factor – average height – influences student distribution.
• In marketing research, sales data for a successful product might display a uni-modal distribution. Sales volume peaks at a specific price point, indicating a sweet spot. Other prices would experience less success as shown in a bell shaped curve, displaying the most popular product.
• Consider a survey on favorite colors. If the results are uni-modal with 'blue' as the mode, it suggests a widespread preference for that color. The values are distributed with the majority of respondents choosing blue, other colours following in a bell shaped curve.
• Analyzing reaction times in an experiment often yields uni-modal data. The times cluster around a central value, showcasing the typical response speed. The peak represents the most frequent and expected time of response. Deviations from the peak represent the extremes of response times.