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Syllabus

Descriptive Statistics — Syllabus

CBSE · Class 11 · Applied Mathematics

What Descriptive Statistics covers in CBSE Class 11 Applied Mathematics: 4 topics, for the 2026-27 session. Topics include Types of Data and Data Sources.

44 questions24 flashcards5 concepts

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4 Topics · CBSE Class 11 Applied Mathematics · 2026-27

Topics in Descriptive Statistics

1

Types of Data and Data Sources

  • Data is plural - always refers to a group of numbers; one piece of information is called a datum
  • Primary data: Collected directly from the field or individuals through surveys, observations, case studies
  • Secondary data: Obtained from already collected sources like records, databases, reports
2

Data Measurement Scales

  • Nominal Scale: Categories with no natural order (e.g., gender, religion, subjects taught)
  • Ordinal Scale: Categories that can be ranked but differences between ranks are not uniform (e.g., performance ratings: poor, average, good)
  • Interval Scale: Equal intervals between consecutive values, can have negative values (e.g., temperature, coordinates)
3

Data Representation and Visualization

  • Bar Graph: Rectangular bars with equal width, used for categorical data comparison
  • Pie Chart: Circular chart divided into sectors, shows parts of a whole (360° total)
  • Line Graph: Connects data points with lines, typically shows changes over time
4

Measures of Central Tendency

  • Mean: Arithmetic average, affected by all values including outliers
  • Median: Middle value when data is arranged in order, not affected by outliers
  • Mode: Most frequently occurring value in the dataset

Key Concepts

Data can be classified based onFour scales existGraphical representation includes bar graphs (comparingMean (arithmetic average) = sumRange (difference between max and min

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Frequently Asked Questions

What are the important topics in Descriptive Statistics for CBSE Class 11 Applied Mathematics?
Key topics in Descriptive Statistics include Types of Data and Data Sources, Data Measurement Scales, Data Representation and Visualization, Measures of Central Tendency. Study these first, then practise questions on each for Class 11 exams.
How should I revise Descriptive Statistics for Class 11 exams?
Learn the core ideas first, then work through the 44 practice questions on Descriptive Statistics. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All CBSE Class 11 Applied Mathematics Syllabus

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