Knowledge points of mathematical statistics in primary schools

It is easy to see various numbers from the bar chart.

The broken-line statistical chart can not only show the quantity, but also clearly show the increase and decrease of the quantity.

The fan-shaped statistical chart can clearly show the relationship between each part and the whole.

Ask which quantity is the most (the least), and pay attention to "others". If "others" have the most (the least), then it is impossible to judge which one has the most (the least).

When looking at the statistical chart of line chart, the drastic change of data is not drastic, but the size of line fluctuation and the size of numbers represented by each grid on the horizontal and vertical axes.

I hope I can help you.

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