BCS-040 · IGNOU BCA Semester 4 · 4 credits
Statistical Techniques
Statistics and probability, statistical inferences, applied statistical methods and sampling.
BCS-040 important topics
The eGyanKosh units IGNOU has examined most, from 8 past papers. Matched automatically from question wording.
- Block 3, Unit 10: Forecasting and Time Series - Analysis ↗Asked often: in 4 of 8 papers
- Block 4, Unit 12: Simple Random Sampling and Systematic Sampling ↗Asked often: in 3 of 8 papers
- Block 2, Unit 7: Applications of Chi-Square In Problems With Categorical Data ↗Asked sometimes: in 2 of 8 papers
- Block 1, Unit 2: Probability Concepts ↗Asked sometimes: in 1 of 8 papers
- Block 1, Unit 3: Probability Distributions ↗Asked sometimes: in 1 of 8 papers
- Block 2, Unit 5: Estimation ↗Asked sometimes: in 1 of 8 papers
- Block 4, Unit 13: Stratified Sampling ↗Asked sometimes: in 1 of 8 papers
- Block 4, Unit 14: Cluster Sampling and Multistage Sampling ↗Asked sometimes: in 1 of 8 papers
BCS-040 assignment
The latest BCS-040 assignment is valid for the July 2026 & January 2027 sessions, number BCA_NEW/BCAOL(III)040/Assign/2026-27. It carries 100 marks and 30% of your final grade. Due 31 Oct 2026 for the July 2026 session or 30 Apr 2027 for the January 2027 session.
BCS-040 previous-year question papers
Official term-end exam papers for Statistical Techniques, published by IGNOU. Each one opens on IGNOU’s website.
- June 2024BCS-040 term-end exam, official PDF
- December 2023BCS-040 term-end exam, official PDF
- June 2023BCS-040 term-end exam, official PDF
- December 2022BCS-040 term-end exam, official PDF
- June 2022BCS-040 term-end exam, official PDF
- December 2021BCS-040 term-end exam, official PDF
- June 2021BCS-040 term-end exam, official PDF
- December 2020BCS-040 term-end exam, official PDF
Important Statistical Techniques questions
7 questions have come in more than one BCS-040 exam. They are listed first. The text is taken from IGNOU’s official papers, so open the paper for figures and exact wording.
Define time series with example and write its components.
The mean weekly sales of chocolate packets in different departmental stores was 146 packets per store. After an advertisement campaign the mean weekly sales of 16 stores for a typical week was 150 and showed a standard deviation of 10. Was the advertisement campaign successful at 5% level of significance? (Given t(15), 0.05 = 1.753).
A chemical firm wants to determine how four catalysts differ in yield? The firm runs the experiment in three of its plant, namely A, B & C. In each plant, the yield is measured with each catalyst. The yield (in quintals) areas follows: Catalyst Plant 1 2 3 4 A 2 1 2 4 B 3 2 1 3 C 1 3 3 1 Perform an ANOVA and comment whether the yield due to a particular catalyst is significant or not at 5% level of significance (Given F3,6 = 4.76).
Describe the following tests in detail: Time series and its components
Define time series and discuss various components of time series.
The mean weekly sales of chocolate packets in different departmental stores was 146.3 packets per store. After an advertisement campaign the mean weekly sales of 22 stores for a typical week increased to 153.7 and showed a standard deviation of 17.2. Was the advertisement campaign successful at 5% level of significance? (Given 21(0.05)t = 2.08).
A chemical firm wants to determine how four catalysts (i.e. 1, 2, 3, 4) differ in their yields? The firm conducted the experiment in three of its plants (i.e. A, B and C). In each plant, the yield is measured with each catalyst. The yield (in quintals) is tabulated below: Plant Catalyst 1 2 3 4 A 2 1 2 4 B 3 2 1 3 C 1 3 3 1 Perform an ANOVA and comment whether the yield due to a particular catalyst is significant or not at 5% level of significance. Given 3,6F = 4.76.
Construct a continuous frequency distribution of the data by taking class width 10.
Draw the histogram of the distribution in given above.
Write a short note on 5+5 (i) X-control chart (ii) Goodness of fit test (iii) Poisson distribution
State additive law of probability. There are 300 patients in a certain hospital of which 15 are COVID-19 patients, 13 are typhoid patients while 3 are suffering from both. If a patient is selected at random from the hospital, what is the probability that he/she either COVID-19 or typhoid patient?
Write a short note on 2 1 2+2 1 (i) Stratified random sampling (ii) Correlation (iii) Median and Standard deviation Section, B
Statistical Techniques study material
IGNOU publishes the full BCS-040 self-learning material free on eGyanKosh: every block and unit on statistics and probability, statistical inferences, applied statistical methods and sampling.
Open BCS-040 on eGyanKosh ↗Get ready for the BCS-040 exam
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