UPSC Civil Services Main 2024 Statistics Paper I Question Paper PDF

Central Government Jobs Administrative / Civil Services 2024

  • Year 2024
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 250
  • Duration Three Hours
  • Languages Hindi & English

Exam Details

Detail Information
Examination Civil Services (Main) Examination
Year 2024
Conducting Body UPSC
Paper Statistics Paper - I
Subject Statistics
Duration Three Hours
Maximum Marks 250
Number of Questions 8
Question Type Descriptive / Subjective

This is the Statistics Paper-I from the UPSC Civil Services (Main) Examination 2024. The paper carries a maximum of 250 marks and candidates are allowed three hours to complete it. It consists of eight questions divided into two sections, with questions presented in both Hindi and English. Candidates must answer a total of five questions, including compulsory questions 1 and 5, and at least one from each section. This paper is crucial for aspirants aiming for administrative roles through the Civil Services examination.

Major Topics Covered

  • Probability
  • Random Variables
  • Joint Probability Function
  • Weak Law of Large Numbers (WLLN)
  • Estimator Criteria
  • Sufficient Statistics

Why This Paper is Important

  • Useful for Civil Services (Main) Examination preparation
  • Helps understand the latest exam pattern
  • Useful for practice and self-assessment
  • Covers frequently asked General Studies topics
  • Helpful for analysing question trends

Related Resources

  • UPSC Civil Services Main 2024 Statistics Paper II
  • UPSC Civil Services Main 2023 Statistics Paper I
  • UPSC Statistics Optional Previous Year Papers
  • UPSC Civil Services Main 2024 Statistics Paper I Answer Key
  • UPSC Main 2024 Statistics Paper I Solutions
  • UPSC Civil Services Main Statistics Syllabus
  • UPSC Statistics Optional Subject Syllabus
  • UPSC Civil Services Main Exam Pattern

Instructions

  • इसमें आठ प्रश्न हैं जो दो खण्डों में विभाजित हैं तथा हिन्दी और अंग्रेजी दोनों में छपे हुए हैं।
  • परीक्षार्थी को कुल पाँच प्रश्नों के उत्तर देने हैं।
  • प्रश्न संख्या 1 और 5 अनिवार्य हैं तथा बाकी प्रश्नों में से प्रत्येक खण्ड से कम-से-कम एक प्रश्न चुनकर तीन प्रश्नों के उत्तर दीजिए।
  • प्रत्येक प्रश्न/भाग के अंक उसके सामने दिए गए हैं।
  • प्रश्नों के उत्तर उसी प्राधिकृत माध्यम में लिखे जाने चाहिए, जिसका उल्लेख आपके प्रवेश-पत्र में किया गया है, और इस माध्यम का स्पष्ट उल्लेख प्रश्न-सह-उत्तर (क्यू॰ सी॰ ए॰) पुस्तिका के मुखपृष्ठ पर निर्दिष्ट स्थान पर किया जाना चाहिए।
  • प्राधिकृत माध्यम के अतिरिक्त अन्य किसी माध्यम में लिखे गए उत्तर पर कोई अंक नहीं मिलेंगे।
  • यदि आवश्यक हो, तो उपयुक्त आँकड़ों का चयन कीजिए, तथा उनको स्पष्टतया निर्दिष्ट कीजिए।
  • जब तक उद्घिखित न हो, संकेत तथा शब्दावली प्रचलित मानक अर्थों में प्रयुक्त हैं।
  • प्रश्नों के उत्तरों की गणना क्रमानुसार की जाएगी।
  • आंशिक रूप से दिए गए प्रश्नों के उत्तर को भी मान्यता दी जाएगी यदि उसे काटा न गया हो।
  • प्रश्न-सह-उत्तर पुस्तिका में खाली छोड़ा हुआ पृष्ठ या उसके अंश को स्पष्ट रूप से काटा जाना चाहिए।

  • There are EIGHT questions divided in two Sections and printed both in HINDI and in ENGLISH.
  • Candidate has to attempt FIVE questions in all.
  • Question Nos. 1 and 5 are compulsory and out of the remaining, THREE are to be attempted choosing at least ONE question from each Section.
  • The number of marks carried by a question/part is indicated against it.
  • Answers must be written in the medium authorized in the Admission Certificate which must be stated clearly on the cover of this Question-cum-Answer (QCA) Booklet in the space provided.
  • No marks will be given for answers written in a medium other than the authorized one.
  • Assume suitable data, if considered necessary, and indicate the same clearly.
  • Unless and otherwise indicated, symbols and notations carry their usual standard meanings.
  • Attempts of questions shall be counted in sequential order.
  • Unless struck off, attempt of a question shall be counted even if attempted partly.
  • Any page or portion of the page left blank in the Question-cum-Answer Booklet must be clearly struck off.

Questions (page 2)

Section A

Q1. (a) दो घटनाएँ A और B इस प्रकार हैं कि P(A) = 1/3, P(B) = 1/4 और P(A|B) + P(B|A) = 2/3, निम्नलिखित के मान निकालिए :
Two events A and B are such that P(A) = 1/3, P(B) = 1/4 and P(A|B) + P(B|A) = 2/3 Evaluate the following : (b) मान लीजिए कि दो यादृच्छिक चरों X और Y का संयुक्त प्रायिकता फलन f(x, y) = (xyx-1)/(3); x = 1, 2, 3 और 0 < y < 1 है। निम्नलिखित का परिकलन कीजिए :
Suppose the joint probability function of two random variables X and Y is f(x, y) = (xyx-1)/(3); x = 1, 2, 3 and 0 < y < 1 Compute the following : (c) मान लीजिए कि X1, X2, dots स्वतंत्र और सर्वसम बंटित यादृच्छिक चरों का एक अनुक्रम है, जिसका माध्य (mu) और प्रसरण (sigma2) infty है, तथा मान लीजिए कि Sn = X1 + X2 + dots + Xn है। दर्शाइए कि यादृच्छिक चरों का अनुक्रम langle Sn angle दुर्बल बृहत् संख्या नियम (WLLN) का पालन नहीं करता है।
Let X1, X2, dots is a sequence of independent and identically distributed random variables with mean (mu) and variance (sigma2) < infty, and assume Sn = X1 + X2 + dots + Xn. Show that WLLN does not hold for sequence langle Sn angle of random variables. (d) एक अच्छे आकलक का मापदण्ड लिखिए। माना कि X1, X2 स्वतंत्र और सर्वसम बंटित (iid) P(lambda) यादृच्छिक चर हैं, तब दर्शाइए कि lambda के आकलन के लिए T = X1 + X2 पर्याप्त है, जबकि T = X1 + 2X2 पर्याप्त नहीं है।
Write the criterion of a good estimator. Let X1, X2 be iid P(lambda) random variables, then show that T = X1 + X2 is sufficient while T = X1 + 2X2 is not sufficient for estimating lambda.

((i)) P(Ac cup Bc)

((ii)) P(A|Bc) + P(B|Ac)

((i)) P(X ge 2 ext और Y ge rac12)
P(X ge 2 ext and Y ge rac12)

((ii)) P(X ge 2)
P(X ge 2)

(a) दो घटनाएँ A और B इस प्रकार हैं कि P

(i) P(Ac ∪ Bc) (ii) P(A|Bc) + P(B|Ac) Two events A and B are such that P

(c) और प्रसरण (o2) < ∞ है, तथा मान लीजिए कि Sn = X1 + X2 + \cdots + Xn है। दर्शाइए कि यादृच्छिक चरों का अनुक्रम \langle Sn \rangle दुर्बल बृहत् संख्या नियम (WLLN) का पालन नहीं करता है। Let X1, X2, \dots is a sequence of independent and identically distributed random and variance (σ^2) < ∞, (μ) and variables with mean assume Sn = X1 + X2 + \cdots + Xn. Show that WLLN does not hold for sequence \langle Sn \rangle of random variables.

Question paper preview

Scanned pages 1–2 for reference. Download the official PDF for the full paper.

Page 1
UPSC Civil Services Main 2024 Statistics Paper I question paper page 1 instructions scan PDF download
Page 2
UPSC Civil Services Main 2024 Statistics Paper I question paper page 1 instructions scan PDF download

Free question paper download

Download question paper PDF

  • 4.3 MB
  • 12 pages
  • PDF format

Frequently asked questions

What is the name of the exam?

The exam is the Civil Services (Main) Examination.

Which paper is this question paper for?

This is for Statistics Paper-I.

What is the conducting body?

The conducting body is UPSC.

What is the maximum marks for this paper?

The maximum marks for Statistics Paper-I is 250.

What is the time allowed to complete the paper?

The time allowed is Three Hours.

How many questions are there in the paper?

There are eight questions in total.

← Back to Administrative / Civil Services papers