**Introduction**

To express a given data or information we can use words, symbols, graphs and pictures. In pictograph, we can use pictures to represent data. For example the picture symbols such as represent different numbers. This way of representing numerical data need more time and it is difficult to compare two items. Instead of pictures and symbols, it is good to use bar graphs. This type of presentation is called online bar graphs or bar diagram. Learn online bar graphs are the easiest method to represent the numerical data into graphical form.

**Example 1:**

Learn bar graphs (figure) represent the following data regarding the number of Students admitted in VI STD during the years 1998 to 2002.

**Questions:**

1) What is the information given by the bar graph?

2) State the year in which the admission was minimum?

3) State the year in which the admission was maximum?

**Solution:**

1) The information given by the bar graph is the number of students admitted in VI STD during the years 1998 to 2002.

2) The year in which the admission was minimum is 1999.

3) The year in which the admission was maximum is 2001.

Learn online Bar graphs showing the number of shirts sold in a ready made shop from Monday to Saturday.

**Questions:**

1) What information is given by the bar graph?

2) Mention the day on which the maximum number of shirts were sold and also mention the number of shirts sold?

3) Mention the day on which the minimum number of shirts were sold and also mention the number of shirts sold?

**Solution:**

1. Learn online Bar graphs showing the number of shirts sold in a readymade shop from Monday to Saturday.

2. 60 shirts were sold in Saturday this is the maximum sale.

3. 10 shirts were sold in Tuesday this is the minimum sale.

This method of learn online bar graphs help in clear understanding of the given data.