Topics
Linear equations in two variables
 Linear Equation in Two Variables
 Simultaneous Linear Equations
 Elimination Method
 Substitution Method
 Cross  Multiplication Method
 Graphical Method of Solution of a Pair of Linear Equations
 Determinant of Order Two
 Cramer’s Rule
 Equations Reducible to a Pair of Linear Equations in Two Variables
 Simple Situational Problems
 Pair of Linear Equations in Two Variables
Quadratic Equations
 Quadratic Equations
 Roots of a Quadratic Equation
 Solutions of Quadratic Equations by Factorization
 Solutions of Quadratic Equations by Completing the Square
 Formula for Solving a Quadratic Equation
 Nature of Roots of a Quadratic Equation
 The Relation Between Roots of the Quadratic Equation and Coefficients
 To Obtain a Quadratic Equation Having Given Roots
 Application of Quadratic Equation
Arithmetic Progression
 Introduction to Sequence
 Terms in a sequence
 Arithmetic Progression
 General Term of an Arithmetic Progression
 Sum of First ‘n’ Terms of an Arithmetic Progressions
 Arithmetic Progressions Examples and Solutions
 Geometric Progression
 General Term of an Geomatric Progression
 Sum of the First 'N' Terms of an Geometric Progression
 Geometric Mean
 Arithmetic Mean  Raw Data
 Concept of Ratio
Financial Planning
Probability
 Probability  A Theoretical Approach
 Basic Ideas of Probability
 Random Experiments
 Outcome
 Equally Likely Outcomes
 Sample Space
 Event and Its Types
 Probability of an Event
 Type of Event  Elementry
 Type of Event  Complementry
 Type of Event  Exclusive
 Type of Event  Exhaustive
 Concept Or Properties of Probability
 Addition Theorem
Statistics
 Tabulation of Data
 Inclusive and Exclusive Type of Tables
 Ogives (Cumulative Frequency Graphs)
 Applications of Ogives in Determination of Median
 Relation Between Measures of Central Tendency
 Introduction to Normal Distribution
 Properties of Normal Distribution
 Concepts of Statistics
 Mean of Grouped Data
 Method of Finding Mean for Grouped Data: Direct Method
 Method of Finding Mean for Grouped Data: Deviation Or Assumed Mean Method
 Method of Finding Mean for Grouped Data: the Step Deviation Method
 Median of Grouped Data
 Mode of Grouped Data
 Concept of Pictograph
 Presentation of Data
 Graphical Representation of Data as Histograms
 Frequency Polygon
 Concept of Pie Graph (Or a Circlegraph)
 Interpretation of Pie Diagram
 Drawing a Pie Graph
Definition
Pictograph: A pictograph represents data through pictures of objects.
Notes
Pictograph:

Sometimes, data is represented graphically to give a clear idea of what it represents.

Pictorial representation of data using symbols. The picture visually helps you to understand the data. It is a pictograph.

A pictograph represents data through pictures of objects.

It helps answer the questions on the data at a glance.

For example,
Shaalaa.com  What Is Pictograph
Related QuestionsVIEW ALL [9]
The following pictograph shows the number of watches manufactured by a factory, in a particular weeks.
Day  Number of watches 
Monday  
Tuesday  
Wednesday  
Thursday  
Friday  
Saturday 
Scale: = 100 watches
Find on which day was the least number of watches manufactured?
The following pictograph shows the number of watches manufactured by a factory, in a particular weeks.
Day  Number of watches 
Monday  
Tuesday  
Wednesday  
Thursday  
Friday  
Saturday 
Scale: = 100 watches
Find the total number of watches manufactured in the whole week?
The sale of vehicles, in a particular city, during the first six months of the year 2016 is shown below:
Month  Jan  Feb  March  April  May  June 
Number of vehicles sold  3000  2500  4000  1000  1500  3500 
Draw a pictograph to represent the above data.
The following pictograph shows the number of cars sold by four dealers A, B, C and D in a city. Scale: = 50 cars.
Dealer  Number of cars 
A  
B  
C  
D 
Using the pictograph, drawn above, answer the following questions:
How many more cars have dealer A sold as compared to dealer D?
The following pictograph shows the number of cars sold by four dealers A, B, C and D in a city. Scale: = 50 cars.
Dealer  Number of cars 
A  
B  
C  
D 
Using the pictograph, drawn above, answer the following questions:
What is the total number of cars sold by all the dealers?
The number of animals in five villages are as follows:
Village  A  B  C  D  E 
No. of. animals  160  240  180  80  120 
Prepare a pictograph of these animals using one symbol to represent 20 animals.
The following pictograph shows different subject books which are kept in a school library.
Subject  Number of books 
Hindi  
English  
Math  
Science  
History 
Taking symbol of one book = 50 books, find:
How many History books are there in the library?
The following pictograph shows different subject books which are kept in a school library.
Subject  Number of books 
Hindi  
English  
Math  
Science  
History 
Taking symbol of one book = 50 books, find:
How many Science books are there in the library?