Which feature of the diagram is an example of chart junk? A graph with the title computer ownership 1998 to 2002. The horizontal x axis has the title year and the years 1998, 2000 and 2002. The vertical y axis has the title households in millions, a range of 0 to 70 and increments at 10. Each increment has a horizontal gridline. The legend at the bottom shows a gray block with the text presence of computer and a black square represents internet access. On the graph, the values for the black square are connected by a line. A table is beneath the graph. Both the table and the graph shows the value for internet access and presence of a computer as follows. Year, presence of computer, internet access. 1998, 42M, 26M. 2000, 51M, 42M. 2002, 62 M 55 M. the presence of a title the table showing the numerical values of the data plotted having two sets of data in the same graph the labels along the axes of the graph

The graphical representation of a set of values saves a lot of time in the data analyst, it is called chartjunk to all the unnecessary elements in a graph that do not help to understand the information represented or that are a distraction for the observer.

In the case presented we have a scatter plot with the x-axis the year of the computer and on the y-axis the number of units in millions, the graph shows two data sets the number of computers and the number of them with access to the internet depending on the year.

The lines in the horizontal grids are excessive represents chartjunk, since it does not help to understand the relationship between the data presented

Computer symbols are shown in the legend and the data to be plotted, this is important information, but in the graph at each point the values are shown in a distracting element since it is in the table and is unnecessary, therefore it's a chartjunk

A missing piece of data in the graph is a connecting line between the total number of computers.

The chartjunk allows you to find unnecessary elements in the chart,

lines on the horizontal grid
values in numerous at each point

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