There are ______ types of frequency curves
Options
A1
B2
C3
D4
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Statistical Description of DataMTP Nov 18Question 2721 of 295
All Questions Correct Answer
✅ Option d — 4
All Options:
- A1
- B2
- C3
- D4
Detailed Solution & Explanation
In descriptive statistics, frequency distributions are categorized based on their shape when plotted. There are **four** primary types of frequency curves recognized in standard statistical textbooks:
1. **Bell-shaped Curve**: Symmetrical or near-symmetrical curve where frequencies start low, rise to a single peak in the center, and fall back to low values (e.g., Normal distribution).
2. **U-shaped Curve**: Curve where the frequencies are maximum at both extremes and minimum in the middle (e.g., mortality rates by age).
3. **J-shaped Curve**: Curve where the frequency starts at a minimum and increases continuously to a maximum at one of the extremities (or its mirror image, a reverse J-shaped curve).
4. **Mixed Curve**: A curve that exhibits a combination of different shapes, often having multiple peaks or irregular variations (multi-modal distributions).
Since there are 4 main types, the answer is Option D.
Hence, **Option D** is the correct answer.
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