Class 6 Maths - HARYANA
Data Handling and Presentation
In the chapter Data Handling and Presentation from Mathematics for Class 6 under the Haryana Board (BSEH), students learn how to collect, organize, and represent numerical information called data. You will understand how raw data can be confusing and why organizing it into tables using tally marks makes it easy to read. The chapter also introduces pictographs, where data is represented using pictures or symbols, and bar graphs, which use bars of uniform width to show comparisons. Mastering this chapter is essential as it builds a strong foundation for statistics and helps you score well in school exams.
Start Learning FreeKey Concepts
Data
A collection of numbers or information gathered to answer a specific question.
Raw Data
Data collected in its original, unorganized form straight from the source.
Tally Marks
A quick way of counting data using vertical lines where every fifth line is crossed diagonally to make counting in groups of five easy.
Pictograph
A pictorial representation of numerical data using symbols or pictures, where each symbol stands for a specific number of items.
Bar Graph
A display of information using rectangular bars of uniform width, where the height or length of each bar represents the given value.
Important Formulas
Board Exam Info
In the Haryana (BSEH) Class 6 Mathematics exams, this chapter generally carries around 5 to 7 marks. Common question types include creating a frequency distribution table using tally marks, drawing a pictograph with a given scale, and interpreting information from an already drawn bar graph to answer direct questions.
Frequently Asked Questions
What is the use of tally marks in data handling?
Tally marks help us count and group raw data quickly without missing any numbers, making it easy to form a frequency table.
How do I choose a proper scale for a pictograph?
Look at the numbers in your data and choose a common factor or multiple (like 2, 5, or 10) so that the pictures are easy to draw and count.
What is the difference between a pictograph and a bar graph?
A pictograph uses pictures or symbols to represent data, while a bar graph uses solid rectangular bars of varying heights along an axis.
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