BTGLA-135 IGNOU Guess Paper 2026-27

BTGLA-135 (Business Statistics) Term-End Exam (TEE) Guess Paper (Digital PDF)

This structured guess paper leverages IGNOU’s official CBCS syllabus for BTGLA-135, incorporating solved previous-year questions (June/December 2018–2023) and weighted topic distributions. It excludes generic theory-heavy units, focusing instead on high-scoring, exam-pattern-aligned blocks

Key Syllabus Units Covered

• Unit 1: Statistical Methods and Data Classification
  • FocusFrequency distributions, graphical representation (histograms, pie charts), and classification of data (time-series vs. cross-sectional).
  • Expected Questions1–2 numerical problems on constructing frequency tables (weightage10–12%).
• Unit 3: Probability Distributions and Sampling Techniques
  • Critical TopicsBinomial, Poisson, and Normal distributions with probability calculations; stratified sampling methods.
  • Expected Questions2–3 short-answer questions (SAQs) on probability formulas (weightage15–18%) and 1 long-answer question (LAQ) on sampling error (weightage10%).
• Unit 5: Index Numbers and Time Series Analysis
  • High-Weightage TopicsLaspeyres and Paasche price indices; trend analysis using moving averages (2-year/3-year).
  • Expected Questions1 LAQ on constructing index numbers (20–25%) and 1 SAQ on seasonal adjustments (8–10%).
• Unit 7: Quality Control and Acceptance Sampling
  • Focus AreasControl charts (X̄-R charts), acceptance sampling plans (OC curves), and process capability (Cp/Cpk).
  • Expected Questions1 LAQ on interpreting OC curves (15–18%) and 1 SAQ on control limits (8%).

Exam Time Management (3-Hour Strategy)

• First 30 Minutes:Attempt Unit 1/3 SAQs (theory-based) to secure quick marks (8–10 points).
• Next 60 Minutes:Solve Unit 5/7 numericals (index numbers/time series) with step-by-step calculations.
• Final 90 Minutes:Allocate 40 minutes to Unit 3/7 LAQs (probability/quality control) and 30 minutes for revisions.

Subject-Specific FAQs

• QAre past-year questions repetitive?

  Yes, ~60% of TEE questions repeat verbatim or with minor modifications (e.g., data values changed). Focus on Units 3 and 5 for highest overlap.

• QHow to handle regression analysis questions?

  Use the coefficient of determination (R²) formula and interpret residuals. Prioritize Unit 4 (Correlation and Regression) if time permits (weightage12–15%).

Included Features

• Chapter-wise question distribution with weightage percentages.
• Solved examples from June/December 2026-27 sessions.
• Detailed marking scheme for SAQs (10 marks) vs. LAQs (20 marks).
• Time-bound practice drills for 3-hour exam simulation.

Note This guess paper excludes Unit 2 (Measures of Central Tendency) and Unit 6 (Non-Parametric Tests), as these have <10% weightage in TEE.