<prompt> What is Frequency Curve?When the observation is large and group interval is reduced, frequency polygon loses its angulations to become a curveIt is a frequency polygon presenting variation by line, it shows the trend of event over a period of timeIt is a graph of cumulative frequency distributionIt is an area diagram of frequency distribution developed over a histogram  <response>: Frequency Curve-When the observation is large and group interval is reduced, frequency polygon loses its angulations to become a curve. Line chagraph-It is a frequency polygon presenting variation by line, it shows the trend of event over a period of time. Cumulative frequency diagram OGIVE-It is a graph of cumulative frequency distribution. Frequency Polygon-It is an area diagram of frequency distribution developed over a histogram. 