One of the important educational tools is graphs. Through graphs we learn how to organize and interpret information. Graphs help not only to analyze data in math but also help convey information in business. Many types of graphs exist, but we use line plots to show frequency of data.
A line plot shows frequency of data along a number line with “x” mark or any other marks to show frequency. It is best to use a line plot while comparing fewer than 25 frequency data. It is a quickest and simplest way to organize data.
Steps to Follow to Plot the Examples on Line Plot
Here are few steps to show how to sketch a line plot;
Step 1 : Gather the given information which is called data for which a line plot has to be drawn. Look for those data sets that need to show frequency.
Step 2 :Group the data items that are the same and then create and label a chart to help you organize the list from the data.
Step 3 : Determine an approximate scale to draw the line plot. If the scale consists of numbers, then break it into even parts.
Step 4 : Draw a horizontal line and label it according to the scale chosen. This looks similar to a number line.
Step 5 : Put a mark, say X that corresponds to the number on the scale according to the data that is organized. This is the line plot.
For example,
We use the above steps to give the line plot examples
Sketch the line plot for the following given data of heights of students of a class in centimeters.
120,110,100,120,105,110,105,100,110,105.
Solution : Let the labels be the heights of the students (in centimeters) in a class. If two students are of 120cms , you'd place two X's above 120. If three students are of 110cms , you'd place two X's above 110. If three students were 105cms , you'd put three X's above 105. If two students are of 100cms , you'd place two X's above 100. The total would be ten students, thus ten X's altogether.
Some more Line Plot Examples
Use all the steps to draw the line plot examples:
(1) Sketch the line plot to show the test scores of 17 students that are given below:
10, 30, 10, 10, 20, 30, 50, 40, 45, 50, 10, 30, 35, 30, 20, 40, 50
(2) Represent the data in a line plot. The following data is obtained from a survey made in an area for number of pets in each household.
No comments:
Post a Comment