Question

Which of the following characteristic of a data set can be found from a line graph?

• A. Maximum value
• B. Minimum value
• C. Trend of data
• D. None of the above.

Answer 1

Answer: (A), (B), (C)

Trend of data

A line graph is generated by connecting all the data points plotted on the vertical axis sequentially by straight lines.

The maximum value of the data set is the peak of the line graph, and similarly, the minimum value of the data set is the bottom of the line graph.

Example - In a locality, the number of houses built in different years is depicted in the following graph:


Here, the peak was in 2018, and the bottom was in 2014.
Hence, 14 is the maximum number of houses built in a year, 6 is the minimum number of houses built.

Also, we can observe that any value on the vertical axis is either constant or more than its preceding value.
Hence, the trend of the number of houses built in the locality is either constant or increasing.

$\therefore$ The options (a), (b) and (c) are correct.