Color each portion of the cake with a color. Draw the circle radius and with a protractor calculate the following data. To make a pie chart you must draw a circle with a compass. For example, the percentage of votes obtained by each political party in an election can be represented. It is a valuable tool for cases in which the absolute is known, and what is important is to know the way in which it was divided into several parts. Then enter the rank and scale of each variable and draw the bars joining the information of both variables.Īlso called pie chart, shows the distribution of a given total in different parts. For example: X: age range Y: number of inhabitants.
To make a line graph, the two axes must be drawn naming them with the variable they represent. For example, the number of inhabitants of a city can be represented according to the age range. They are very valuable for comparing magnitudes. In bar or column charts, each value of the X axis corresponds to a value of Axis y A that determines the height of a column. Mark each piece of information with a point and connect the points with a line. Then enter the range and scale of each variable. For example: X: months of the year Y: temperature. To make a line graph on paper, the two axes must be drawn naming them with the variable they represent. For example, it can be used to show how the average temperature of a city has changed over the last five years. In this type of graph, a set of points is connected by means of straight lines that, between all of them, manage to show the more or less regular dynamics of the behavior of something in relation to another variable. The line graph is used to show how a variable changes with the passage of time. Other charts are more complex, including, for example, two Y-axis systems, error bars, three-dimensional representations, accumulated data.
They are statistical graphics that capture the information on maps. For instance: pie or pie chart, bubble chart, or spider charts.
They are graphics that are carried out in different geometric figures. For instance: bar, line, or scatter charts. These graphs relate independent variables on the X axis (abscissa) to dependent variables on the Y axis (ordinate) on a system of orthogonal axes that intersect at an origin point. It is called Cartesian in honor of René Descartes, French philosopher and mathematician.
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