Pictograph charts show data using graphical representations. Each image on a pictograph chart stands for a certain number of items. For example, a pictograph chart showing the sale of apples may use one apple to mean 100 bushels of apples sold. Pictographs are limited by what they represent based on how small a single representation breaks down to show portions of an image.Continue Reading
Say the apple sales example from above includes the number of apples sold from January to April. One apple icon is next to "Jan" on the pictograph, which means 100 bushels were sold in that month. February, or "Feb," has four apple icons for 400 bushels. March, or "Mar," contains two and a half apple icons for 250 bushels. Exact figures are not represented, such as 248 bushels sold in March; 250 is the closest figure shown on the pictograph.
Another example shows ice cream sales in a school cafeteria during a school year from September to June. The pictograph shows the months down the left side, and one ice cream bar represents 20 ice cream bars. In September, the pictograph shows 2.5 ice cream bars, or a total of 30 bars sold.
A pictograph substitutes symbols and pictures for graph elements such as bars, lines and points. A pictograph is also known as a pictorial chart, pictogram, picture graph or pictorial graph.Learn more about Data Graphs
In math, a pictogram or pictograph is the use of pictures or images to present data. To make a pictogram, a table of data is constructed with an accompanying key. An example of a pictograph is one that shows how many apples are eaten by student for lunch during a 5-day week.Full Answer >
Histograms are useful in pictorial representations of data distributions. The histogram is a type of bar graph, where bar height or length represents the frequency of occurrence of a continuous distribution of data classes.Full Answer >
Graphs of various types provide convenient visual representations of scientific data that would otherwise be presented in intimidating blocks of text or a series of numbers. Graphs represent statistics such as changes over time, comparisons, or parts of a whole. Graphs can be used to make date more accessible to both scientists and laypersons.Full Answer >
Gantt charts originated in the 1910s, when Henry Gantt developed the first one to show the schedule for a project. These charts indicate the beginning and ending dates for a project, as well as the terminal and summary elements of that project, which make up the entire work breakdown. More modern Gantt charts also indicate relationships between various activities.Full Answer >