- Concept of Information Handling
- Data, Collection of Data, Presentation of Data
- Types of Data
- Constant & Variable.
- Types of Variables
- Ungrouped & Grouped Data
- Classification & No. of Classes
- Specification of Classes
- Class interval & Class Limits
- Class Mark & Class Boundaries.
- Class Frequency
- Introduction to Tabulation
- One way Tabulation
- Two way Tabulation
- Construction of Continuous Frequency Table
- Formation of Frequency Distribution byTally Bar Method
- Formation of Frequency Distribution by Direct Method
- Graph of Frequency Distribution by Histogram
- Construction of Frequency Polygon

- Measure of Location
- Types of Measures of Central Tendency
- Problem 1: Types of Measures of Central Tendency
- Problem 2: Types of Measures of Central Tendency
- problem 3: Types of Measures of Central Tendency
- Arithmetic Mean (A.M) for Ungrouped Data
- Arithmetic Mean (A.M) for Grouped Data by Direct Method
- Short formula for Computing Arithmetic Mean for Ungrouped Data
- Short formula for Computing Arithmetic Mean for Grouped Data
- Coding Method of Finding Arithmetic Mean
- A.M for Grouped Data by Coding Method
- Median for Ungrouped Data
- Median for Grouped Continuous Data
- Mode for Ungrouped Discrete Data
- Mode for Grouped Data
- Situations when Mean, Median and Mode are Used
- Properties of Arithmetic Mean
- Merits and Demerits of Median
- Merits and Demerits of Mode

- Types of Measures of Dispersion
- Problem 1: Types of Measures of Dispersion
- Problem 2: Types of Measures of Dispersion
- Concept of Dispersion
- Importance & Uses of Measures of Dispersion
- Calculation of Range for Raw or Ungrouped Data
- Calculation of Range for Grouped Data
- Uses and Properties of Range
- Limitations or Drawbacks of Range
- Introduction to Variance and Standard deviation
- Calculation of the Variance and Standard Deviation by Direct Method
- Calculation of Variance by Proper Mean Formula
- Calculation of Variance by Short Cut Method
- Calculation of S.D by Short Cut Method
- Calculation of Standard Deviation by Proper Mean Formula
- Calculation of S.D by Direct Method
- Limitations of Variance and Standard Deviation
- Criteria for the measurement of spread of Observation
- S.D & Variance for A Grouped Data