Arithmetic
Associative Property
Averages
Brackets
Closure Property
Commutative Property
Conversion of Measurement Units
Cube Root
Decimal
Divisibility Principles
Equality
Exponents
Factors
Fractions
Fundamental Operations
H.C.F / G.C.D
Integers
L.C.M
Multiples
Multiplicative Identity
Multiplicative Inverse
Numbers
Percentages
Profit and Loss
Ratio and Proportion
Simple Interest
Square Root
Unitary Method
Algebra
Algebraic Equation
Algebraic Expression
Cartesian System
Linear Equations
Order Relation
Polynomials
Probability
Standard Identities & their applications
Transpose
Geometry
Basic Geometrical Terms
Circle
Curves
Angles
Define Line, Line Segment and Rays
Non-Collinear Points
Parallelogram
Rectangle
Rhombus
Square
Three dimensional object
Trapezium
Triangle
Trigonometry
Trigonometry Ratios
Data-Handling
Arithmetic Mean
Frequency Distribution Table
Graphs
Median
Mode
Range
Home >> Graphs >> Histogram >>

## Histogram

 Pictograph Bar Graph Double Bar Graph Histogram Pie Graph Line Graph Difference between Bar Graph and Histogram

Before you understand what is a Histogram, you are advised to read:

What is Grouped Frequency Table ?

The graphical representation of data of class interval is called as Histogram.
Or in other words, A Histogram is a bar graphs that shows data in intervals.
Or we can also say that: A Graph which represents grouped frequency table; is known as Histogram

Since there is no gap between the class-intervals, there is no gaps between the bars of histogram too and height of bar represents the frequency of class interval.

Example : In a class of 30 students, following numbers represents weight of these students:
30, 31, 51, 35, 40, 39, 42, 43, 36, 49, 44, 33, 37, 47, 52, 38, 32, 50, 39, 40, 45, 46, 53, 35, 31, 41, 51, 33, 46, 53

Put the data in groups and make a Grouped Frequency Distribution Table (as shown below):

Groups (Weight in Kg) Frequency (No. of Students)
30 – 35 6
35 – 40 7
40 – 45 6
45 – 50 5
50 – 55 6
Total 30