Social & Preventive Medicine What is Frequency Curve? A When the observation is large and group interval is reduced, frequency polygon loses its angulations to become a curve B It is a frequency polygon presenting variation by line, it shows the trend of event over a period of time C It is a graph of cumulative frequency distribution D It is an area diagram of frequency distribution developed over a histogram 💡 Explanation What is Frequency Curve? ✓ Correct Answer: A. When the observation is large and group interval is reduced, frequency polygon loses its angulations to become a curve