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IGNOU BECM-163 Introductory Statistics - IGNOU Solved Assignment (Latest)

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IGNOU BECM-163 (July 2025 – January 2026) Assignment Questions

Assignment I

Answer the following Descriptive Category Questions in about 500 words each

1) (a) Calculate mean, median and mode from the following data.


(b) Calculate the coefficient of variation from the data given above.

2) Distinguish between sample survey and census. Describe the steps you would follow in collecting data though a sample survey. Prepare a small questionnaire for collection of income and expenditure levels of households.

Assignment II

Answer the following Middle Category Questions in about 250 words each.

3) (a) Describe the important properties of a standard normal variable.
(b) Find out the area under the standard normal curve for each of the following (use z-table). Sketch each one of them.

(i) between z = – 0.43 and z = 0.78
(ii) between z = 0.44 and z = 1.50
(iii) to the right of z = – 1.33.

4) Fit a straight line (𝑌 = 𝑎 + 𝑏𝑋) to the following data. Compare the estimated values of the dependent variable with its actual values.

5) What are the steps that you should keep in mind while constructing a price index? What are the properties that an index number should fulfil?

Assignment III

Answer the following Short Category Questions.

6) Write short notes on the following in about 100 words each:

(a) Contingency table and chi-squared test
(b) Properties of a good estimator
(c) Measurement of skewness

7) Differentiate between the following:

(a) Simple Random Sampling and Stratified Random Sampling
(b) Type I and Type II errors in hypothesis testing
(c) Level of significance and confidence level in hypothesis testing

 

IGNOU BECM-163 (July 2025 – January 2026) Assignment Questions

सत्रीय कार्य 1

1) (a) निम्नलिखित आँकड़ों से माध्य, माध्यिका और बहुलक की गणना करें।


(b) ऊपर दिए गए आँकड़ों से विचरण के गुणांक की गणना करें।

2) प्रतिदर्श सर्वेक्षण और जनगणना के बीच अंतर स्पष्ट करें। प्रतिदर्श सर्वेक्षण के माध्यम से आँकड़े एकत्र करने की प्रक्रिया में आप जो कदम उठाएँगे, उनका वर्णन करें। परिवारों के आय एवं व्यय के स्तर संबंधी जानकारी संग्रह के लिए एक छोटी प्रश्नावली तैयार करें।

सत्रीय कार्य II

निम्नलिखित मध्यम श्रेणी के प्रश्नों के उत्तर लगभग 250 शब्दों में दें।

3) (a) किसी मानक प्रसामान्य चर के महत्वपूर्ण परिगुणों का वर्णन करें।.

(b) निम्नलिखित में से प्रत्येक के लिए मानक प्रसामान्य वक्र के अंतर्गत क्षेत्र ज्ञात करें (z-तालिका का प्रयोग करें। इनमें से प्रत्येक का संक्षिप्त वर्णन करें।

(i) z = – 0.43 और 0.78 के बीच
(ii) z = 0.44 और 1.50 के बीच
(iii) z = – 1.33 के दाईं ओर।

4) निम्नलिखित आँकड़ों के अनुरूप एक ऋजु रेखा (Y = a + bx) खींचें। आश्रित चर के आकलित मानों की तुलना उसके वास्तविक मानों से करें।

5) मूल्य सूचकांक बनाते समय आपको किन चरणों को ध्यान में रखना चाहिए? सूचकांक संख्या में कौन-से परिगुण होने चाहिए?

सत्रीय कार्य III

निम्नलिखित लघु श्रेणी के प्रश्नों के उत्तर लगभग 100 शब्दों में दें।

6) निम्नलिखित पर लगभग 100 शब्दों में संक्षिप्त टिप्पणियाँ लिखिए:
(अ) आसंग तालिका और काई-वर्ग परीक्षण
(ब) एक अच्छे अनुमानक के गुण
(स) विषमता के माप

7) निम्नलिखित के बीच अंतर स्पष्ट करें -:

(a) सरल यादृच्छिक प्रतिचयन और स्तरीकृत यादृच्छिक प्रतिचयन
(b) परिकल्पना परीक्षण में टाइप-1 और टाइप-II त्रुटियाँ
(c) परिकल्पना परीक्षण में सार्थकता स्तर और विश्वास्यता स्तर

 

BECM-163 Assignments Details

University : IGNOU (Indira Gandhi National Open University)
Title :Introductory Statistics
Language(s) : English, Hindi
Code : BECM-163
Degree :
Subject : Economics
Course : Minor Discipline Specific Course
Author : Gullybaba.com Panel
Publisher : Gullybaba Publishing House Pvt. Ltd.

IGNOU BECM-163 (Jul 25 - Jan 26) - Solved Assignment

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