TBSE Class 11 Syllabus 2025 Statistics

SYLLABUS – 2024- 2025
CLASS – XI
SUBJECT – STATISTICS
Total Marks – 70 Practical - 30

HALF-YEARLY EXAMINATION: 2024-2025

Unit I: Introduction to Statistics
Definition and limitations of Statistics. Sample and Population, Qualitative and quantitative data.
Collection of Statistical data (Primary & Secondary). Classification, Tabulation and diagrammatic
representation (Pie chart, Line diagram and Bar diagram) of data. Discrete and continuous variable.
Questionnaire. Frequency distribution and cumulative frequency distribution and their graphical
representations (Histogram, Frequency Polygon, Frequency curve and Ogives).

Unit II: Mathematics
Arithmetic Progression (AP), Geometric Progression (GP), Permutation and Combination Binomial
Expansions and Infinite Series.

Unit III: Descriptive Statistics-I
Concept of Central Tendency, different measures of Central Tendency (Mean, Median and Mode).
Quartiles, Deciles and Percentiles.

1. Drawing of Pie chart, Line diagram and Bar diagram.

2. Drawing of Histogram, Frequency Polygon, Frequency curve and Ogives.

3. Computation of A.M., G.M. and H.M. from ungrouped and grouped data.

4. Computation of Median and Mode, Quartiles, Deciles and Percentiles from ungrouped and grouped
data.

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ANNUAL EXAMINATION: 2024-2025

Unit III: Descriptive Statistics-2
Concept of Dispersions, different measures of dispersions (Range, Quartile deviation, Mean deviation
and Standard deviation), Relative measures of dispersions.
Moments, Sheppard’s correction for moments (without proof), Skewness and Kurtosis and their
measures based on moments and quartiles.

Unit IV: Time Series
Definition of Time Series, Different Components of Time Series, Different models involve in Time
Series, Calculation of Trends by different methods (graphical method, method of semi average,
method of moving average and method of least squares) with advantages and disadvantages.
Calculation of seasonal components by different methods (method of simple average, ratio to trend
and ratio to moving average) with advantages and disadvantages.

1. Computation of Range, Quartile deviation, Mean deviation, Standard deviation and coefficient of
variation from ungrouped and grouped data.
2. Computation of different measures of Skewness and Kurtosis from ungrouped and grouped data.
3. Computation of trend by method of semi average, moving average and by method of least squares.
4. Computation of seasonal component by method of simple average, ratio to trend and ratio to
moving average.

BLUE-PRINT OF DISTRIBUTION OF MARKS
HALF-YEARLY/ ANNUAL EXAMINATION: 2024-2025
Very Short Answer (VSA) 15 Questions x 2 Marks 15x2 = 30
Short Answer (SA) 5 Questions x 3 Marks 5x3 = 15
Long Answer (LA) 5 Questions x 5 Marks 5x5 = 25
Total 70
BLUE-PRINT OF DISTRIBUTION OF MARKS (PRACTICAL)
HALF-YEARLY/ ANNUAL EXAMINATION: 2024-2025
1. Experiments (5+5+10) 20 Marks
2. Practical Note Book (PNB) 3 Marks
3. Viva-voce 2 Marks
4. Attendance 5 Marks
Total 30 Marks

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WEIGHTAGE TO TYPE OF QUESTIONS

Type of Questions Marks (70) Percentage
1. Very Short Answer Type Questions (VSA) (2x15)
30 42.86
(Inclusive of Assertion, Reason, Differentiation & Stem)
2. Short Answer Type Questions (SA) (3x5)
(Knowledge, Understanding, Application, Analysis, Evaluation, 15 21.43
Synthesis & Create)
3. Long Answer Type Questions (LA) (5×5)
(Knowledge, Understanding, Application, Analysis, Evaluation, 25 35.71
Synthesis & Create)
70 100

NOTE:-
i) Typology of questions:- MCQ, VSA, Assertion- Reasoning type questions; SA-I, SA-II, LA-I,
LA-II, LA- III.
In LA- type questions source-based/ case- study based/ passage based questions may be
included.

ii) Approximately 33 % internal choice would be given.

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