UPSC IES ISS 2023 Statistics Paper II Question Paper PDF

Central Government Jobs Other Jobs 2023

  • Year 2023
  • Conducted By UPSC
  • Questions 80
  • Maximum Marks 200
  • Duration Two Hours
  • Languages English

Exam Details

Detail Information
Examination Indian Economic Service-Indian Statistical Service Examination
Year 2023
Conducting Body UPSC
Paper Statistics Paper II
Subject Statistics
Duration Two Hours
Maximum Marks 200
Number of Questions 80
Question Type Objective (MCQ)

This is the official question paper for Statistics Paper II of the Indian Economic Service-Indian Statistical Service Examination held in 2023 by UPSC. The paper consists of 80 objective-type questions and is allocated a total of 200 marks, with a time limit of two hours. This paper is crucial for aspirants preparing for the IES ISS exam, providing insights into the types of questions asked and the difficulty level. Analyzing this paper helps candidates strategize their preparation and identify areas for improvement in Statistics.

Major Topics Covered

  • Statistics
  • Estimation Theory
  • Method of Moments
  • Weak Law of Large Numbers
  • Error Measurement

Why This Paper is Important

  • Useful for Indian Economic Service-Indian Statistic 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 IES ISS 2022 Statistics Paper II
  • UPSC IES ISS 2023 Statistics Paper I
  • UPSC Statistics Optional Papers
  • IES ISS 2023 Statistics Paper II Answer Key
  • UPSC IES ISS Statistics Syllabus
  • Statistics Optional Subject Syllabus
  • UPSC IES ISS Exam Pattern
  • IES ISS Selection Process

Instructions

  • THIS TEST BOOKLET DOES NOT HAVE ANY UNPRINTED OR TORN OR MISSING PAGES OR ITEMS.
  • IF SO, GET IT REPLACED BY A COMPLETE TEST BOOKLET.
  • Please note that it is the candidate's responsibility to encode and fill in the Roll Number and Test Booklet Series Code A, B, C or D carefully and without any omission or discrepancy at the appropriate places in the OMR Answer Sheet.
  • Any omission/discrepancy will render the Answer Sheet liable for rejection.
  • You have to enter your Roll Number on the
  • Test Booklet in the Box provided alongside. DO NOT write anything else on the Test Booklet.
  • This Test Booklet contains 80 items (questions).
  • Each item comprises four responses (answers).
  • You will select the response which you want to mark on the Answer Sheet.
  • In case you feel that there is more than one correct response, mark the response which you consider the best.
  • In any case, choose ONLY ONE response for each item.
  • You have to mark all your responses ONLY on the separate Answer Sheet provided. See directions in the Answer Sheet.
  • Before you proceed to mark in the Answer Sheet the response to various items in the Test Booklet,
  • you have to fill in some particulars in the Answer Sheet as per instructions sent to you with your Admission Certificate.
  • After you have completed filling in all your responses on the Answer Sheet and the examination has
  • concluded, you should hand over to the Invigilator only the Answer Sheet.
  • You are permitted to take away with you the Test Booklet.
  • Sheets for rough work are appended in the Test Booklet at the end.
  • Penalty for wrong answers: THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE IN THE OBJECTIVE TYPE QUESTION PAPERS.

Questions (page 2)

Q1. The radius of a circle is measured with an error of measurement, which is N(0, σ^2). Let x1, x2, ..., xn be n measurements of the radius. Let \barx = (∑i=1n xi)/(n) be the sample mean and S2 = (∑i=1n (xi - \barx)^2)/(n-1) be the sample variance. What is the unbiased estimate of the area of the circle?

  • (a) π(\barx)2
  • (b) π (∑i=1n xi^2)/(n)
  • (c) π \(∑i=1n xi^2)/(n) - S2\
  • (d) π \{(\barx)2 - S2\}

Q2. Let 2.5, -2.0, 1.5, 3.5, 0.5 be the observations of a random sample of size 5 from the continuous distributions with pdf f(x) = 1/8 e-|x-2| + (3)/(4√(2π)) e-1/2(x-θ)2 ; x, θ ∈ R and θ is unknown. Then the method of moment estimators of θ belongs to the interval:

  • (a) (0.60, 0.70)
  • (b) (0.70, 0.80)
  • (c) (0.80, 0.90)
  • (d) (0.90, 0.99)

Q3. Consider the following statements :

  • (a) Statement-I and Statement-II are individually correct and Statement-II is the correct explanation of Statement-I.
  • (b) Statement-I and Statement-II are individually correct but Statement-II is not the correct explanation of Statement-I.
  • (c) Statement-I is correct but Statement-II is incorrect.
  • (d) Statement-I is incorrect but Statement-II is correct.

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UPSC IES ISS 2023 Statistics Paper II question paper page 1 instructions and exam header scan PDF download
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Frequently asked questions

What is the name of the exam for which this question paper is?

This question paper is for the Indian Economic Service-Indian Statistical Service Examination.

Which paper is this question paper?

This is Statistics Paper II.

What is the conducting body for this examination?

The examination is conducted by UPSC (Union Public Service Commission).

In which year was this examination held?

This examination was held in 2023.

What is the total time allowed for the exam?

The time allowed for the exam is Two Hours.

What are the maximum marks for this paper?

The maximum marks for this paper are 200.

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