Non-Frequency Distribution Graphs
Which of the following is not a graph of frequency distribution-
- Histogram
- Frequency polygon & frequency curve
- Ogives
- Historigram — Correct Answer
Explanation:
Correct Answer (NOT a frequency distribution graph): Historigram
Histogram, Frequency polygon, Frequency curve, and Ogives are all graphical tools for displaying frequency distributions. A Historigram is used exclusively for time series data (values changing over time) — it is NOT a frequency distribution graph.
Graphs of Frequency Distribution vs Time Series
| Graph | Type | Used For |
|---|---|---|
| Histogram | Frequency distribution ✓ | Continuous variable frequency; adjacent rectangles |
| Frequency polygon | Frequency distribution ✓ | Lines connecting midpoint frequencies |
| Frequency curve | Frequency distribution ✓ | Smoothed free-hand curve from frequency polygon |
| Ogives | Frequency distribution ✓ | Cumulative frequency curve; median & quartile estimation |
| Historigram | Time series ✗ | Values plotted against time; also called Line graph |
Memory Aid
- Histogram → History of frequencies (frequency distribution)
- Historigram → History over time (time series)
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
