In a tally mark grouping by four and crossing fifth is called ______.

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In a tally mark grouping by four, crossing the fifth is called the four-and-cross method. Explanation: In geographical statistics, the specific act of drawing four vertical lines and crossing them with a fifth diagonal line is officially known as the Four and Cross Method. While it is part of overall tally marking, this specific bundling technique is named because every fifth count “crosses” the group of “four”. This creates a clear block of five, making it very easy to count and calculate total frequencies from large sets of raw data without making errors.

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