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Mathematical statistics of grade three
(1) Meaning * Fill in statistical data in a certain format to reflect the situation and explain the problem. Such a table is called a statistical table. (2) Component * is generally divided into two parts: parting and entering. The format part includes target name, unit description and tabulation date; Tables include titles, horizontal titles, vertical titles and data. (III) Category * Simple Statistics: Statistics containing only one item. * Composite statistical table: a statistical table containing two or more statistical items. * Percentage statistics table: it shows not only the specific quantity of each statistical item, but also the percentage of the comparative quantity equivalent to the standard quantity. (4) Making steps 1 Collecting data 2. Collating data: classifying data according to tabulation purposes and statistical contents. 3. Design the draft table:-According to the purpose and content of statistics, design the content and drawing method of column grid, specify the number of horizontal and vertical columns, and the length of each column. Formal tabulation:-Fill in the checked data in the table, and write the name and tabulation date of the statistical table in simple and clear language according to the tabulation requirements.