**Simple Bar Diagram**

Simple bar diagrams are used when there is only one characteristic of the data and there may be many bars as the number of observations of the same variable. For example, the data obtained on the number of successful students in a college in various years can be presented by simple diagrams. It consists of a set of equidistant rectangles of equal width which heights represent the value of the variable.

**Example:**

Represent the following data of a number of students enrolled in a college in grade XI.

No. of Students | Year |

2000 | 15 |

2001 | 10 |

2002 | 30 |

2003 | 25 |

Above diagram is the example of Simple Bar Diagram.

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