The key reason to usage a stem-and-leaf plot instead of a period plot is to assess group trends and individual values better.

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Both are methods of grouping data and can be supplied to identify trends in that data, and also some trends are more obvious in one or the other.

Dot plots and also stem-and-leaf plots look and behave similarly. They have a list of increasing values or groups of worths on one next of a line, and also on the various other side that the line, they mark how frequently those values occur. Usually, dot plots are simpler to make, but stem-and-leaf plots give an ext information in part cases.

Dot plots generally list the values or intervals horizontally and stack "X"s above each interval come tally their frequency. Stem-and-leaf plots list intervals, frequently the largest relevant digit, vertically and also place the lower-value number to your right.

Both could be provided to analysis a wire of numbers, such together "17, 22, 23, 22, 16, 21, 18, 20, 20, 22, 17, 25, 19, 22, 17."

In the dot plot, all totality numbers between 16 and also 25 could be listed, and each value would be marked for the number of times the it occurs. This provides finding the mode really easy.

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In the stem-and-leaf plot, 10s digits 1 and 2 would produce two rows. The persons digits that correspond to the 10 would follow in order to the right of the line. In this case, an analyst could see grouping and still have the ability to locate median and also mode.

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