<prompt> Best method to show trend of events with passage of time is?Line diagramBar diagramHistogramPie chart  <response>: ANSWER: A Line diagramREF: Park 20th edition page 747 748, stylefont-size: 1.04761904761905em; font-family: Times New Roman, Times, serif; margin: 0 0 0 8px; text-indent: 0; text-align: leftLine diagrams are used to show the trend of events with passage of timePictographA pictograph uses an icon to represent a quantity of data : values in order to decrease the size of the graph. A key must be used to explain the icon.Advantages Easy to read Visually appealing Handles large data sets easily using keyed iconsDisadvantages Hard to quantify partial icons Icons must be of consistent size Best for only 2-6 categories Very simplisticPie chartA pie chart displays categorical data as a percentage of the whole by using a circle. Each pie section should have a label and percentage. A total data number should be included.Advantages Visually appealing Shows percent of total for each categoryDisadvantages No exact numerical data Hard to compare 2 data setsOther category can be a problem Total unknown unless specified Best for 3 to 7 categories Use only with discrete dataHistogramA histogram displays discrete or continuous data in ordered columns. Each column represents a group defined by a quantitative variable such as time, inches, temperature, etc.Advantages Visually strong Can compare to normal curve Usually vertical axis is a frequency count of items falling into each categoryDisadvantages Cannot read exact values because data is grouped into categories More difficult to compare two data sets Use only with continuous dataBar graphA bar graph displays discrete data in separate columns. A double bar graph can be used to compare two data sets. Each column represents a group defined by a categorical variableAdvantages Visually strong Can easily compare two or three data setsDisadvantages Graph categories can be reordered to emphasize certain effects Use only with discrete dataLine graphA line graph plots continuous data as points and then joins them with a line. To show the trend of event with passage of timeAdvantages Can compare multiple continuous data sets easily Interim data can be inferred from graph lineDisadvantages Use only with continuous dataFrequency PolygonA frequency polygon can be made from a line graph by shading in the area beneath the graph. It can be made from a histogram by joining midpoints of each column.Advantages Visually appealingDisadvantages Anchors at both ends may imply zero as data points Use only with continuous data 