Line Charts

A line chart is a basic type of chart.

In a line chart the series of data points are connected by line segments. The numbers along the side of the line chart represent the scale.

It is an extension of a scatter plot.

Example:

Draw the line chart for the following data.

Year	Population (in Millions)
1950	45
1960	56
1970	67
1980	82
1990	98
2000	104
2010	120

Sol: Let us plot the line chart for the given data

Try these questions :

1. In a line chart the series of data points are connected by
   
   1. Dots
   2. Line segments
   3. Lines
   4. Nothing
   Answer: B
   A line graph connects data points by line segments.