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 A.P.
- 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 Circle-graph)
- Interpretation of Pie Diagram
- Drawing a Pie Graph
definition
Pictograph: A pictograph represents data through pictures of objects.
notes
Pictograph:
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Sometimes, data is represented graphically to give a clear idea of what it represents.
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Pictorial representation of data using symbols. The picture visually helps you to understand the data. It is a pictograph.
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A pictograph represents data through pictures of objects.
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It helps answer the questions on the data at a glance.
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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?
