As with many other types of graphs and charts, tally charts are one method of showing a certain amount of data in an easy-to-understand format. However, although effective in some ways, they are not so effective in others, leading them to not necessarily be the perfect choice for certain types of data. A tally chart is shown by drawing a vertical line for each number, and a diagonal line across the previous four lines whenever a multiple of five is reached.

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Tally charts are simple to draw up and use. Rather than having to draw up an entire graph with measurements, or a chart which may require angles and certain equations to work out, a tally chart just consists of lines. Because of this, they are a popular choice of graph to be used by children. This also means that they are good to use in situations where data needs to be collected quickly, or with as little hassle as possible.

• Tally charts are simple to draw up and use.
• Because of this, they are a popular choice of graph to be used by children.
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Another advantage is that tally charts are universal. This means that they can be used in any language or dialect, regardless of the alphabet, language or number system used. The tally chart requires no form of writing at all, just lines and an ability to count, and so anywhere across the world they can be used, making them particularly useful if they need to be transferred globally.

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The last advantage is that they are easier to write up than various other forms of charts and graphs. A tally chart is used specifically to count up numerically. If one was doing this with numbers, for example, then they would have to keep crossing out the previous number and writing down the next one, which eventually gets tiresome and isn’t a very ordered way of presenting data. With a tally chart, however, lines are added as data is added, so the data is kept structured and neat. This is particularly useful when tallying data such as points in sport.

• The last advantage is that they are easier to write up than various other forms of charts and graphs.
• With a tally chart, however, lines are added as data is added, so the data is kept structured and neat.
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Tally charts also have disadvantages. For instance, although tally charts are great at tallying up information such as points in sport or a count of a small amount of objects, they are useless at catering for larger volumes of data. For example, it would be a lot of effort to count up over 1000 objects, or points, by using a tally chart, as the process would take a long time and also a lot of space. For this reason they are much better to use with smaller numbers, and a graph with changeable axes would be more appropriate in this instance.

• Tally charts also have disadvantages.
• For this reason they are much better to use with smaller numbers, and a graph with changeable axes would be more appropriate in this instance.
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