<prompt> Best way to plot the change of incidence of disease over time -Line diagramBar chartHistogramPie chart  <response>: Ans. is a i.e., Line diagramo Line diagram is used to show the trend of events with passage of time and shows how the frequency of a particular event e.g. incidence of disease vary over time,Line diagram 1 Line chartLine grapho It is used to show the trend of events with passage of time and shows how the frequency of a particular event or variable vary over time.DataMethodFrequency of occurrence comparisons of magnitudeBar ChartPie chartTrends over timeLine graphDistribution not related to timeHistogram,Frequency polygonAssociation Looking for correlation between two variablesScatter diagram 