IES ISS 2017 Statistics Paper I Question Paper PDF

Central Government Jobs Other Jobs 2017

  • Year 2017
  • Conducted By UPSC
  • Questions 80
  • Maximum Marks 200
  • Duration Two Hours

Exam Details

Detail Information
Examination IES/ISS Exam
Year 2017
Conducting Body UPSC
Paper Statistics Paper I
Subject Statistics
Duration Two Hours
Maximum Marks 200
Number of Questions 80
Question Type Objective (MCQ)

This is the official Statistics Paper I question paper for the IES/ISS Exam conducted by UPSC in 2017. The paper consists of 80 objective questions carrying a maximum of 200 marks and is to be completed within two hours. This paper is a crucial resource for candidates preparing for the Indian Economic Service (IES) and Indian Statistical Service (ISS) examinations, providing insights into the exam pattern, difficulty level, and types of questions asked in Statistics.

Major Topics Covered

  • Statistics
  • Probability
  • Random Variables
  • Bernoulli Trials
  • Poisson Distribution
  • Binomial Distribution
  • Discrete Uniform Distribution
  • Negative Binomial Distribution

Why This Paper is Important

  • Useful for IES/ISS Exam 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

  • IES ISS 2016 Statistics Paper I
  • IES ISS 2018 Statistics Paper I
  • IES ISS 2017 Statistics Paper II
  • IES ISS 2017 Statistics Paper I Answer Key
  • IES ISS Statistics Syllabus
  • UPSC Statistics Syllabus
  • IES ISS Exam Pattern
  • UPSC Exam Pattern

Instructions

  • 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).
  • 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.
  • 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.
  • There are four alternatives for the answer to every question.
  • For each question for which a wrong answer
  • has been given by the candidate, one-third of the marks assigned to that question will be deducted as penalty.
  • If a candidate gives more than one answer, it will be treated as a wrong answer even if one of the given \langle ii \rangle answers happens to be correct and there will be same penalty as above to that question.
  • If a question is left blank, i.e., no answer is given by the candidate, there will be no penalty for that (iii) question.
  • DO NOT OPEN THIS TEST BOOKLET UNTIL YOU ARE TOLD TO DO SO (1 - A)

Questions (page 2)

Q1. Leela has appeared in an examination which follows multiple choice questions, each having five possible answers. The probability that she knows an answer is 0.75. If she does not know an answer, she will guess, with the conditional probability 1/5 of being correct. The conditional probability that Leela knows the answer, given that she gives the correct answer, is

  • (a) 0.25
  • (b) 0.80
  • (c) 0.90
  • (d) 0.94

Q2. Consider a sequence of Bernoulli trials with probability of success 1/3 for each trial. Let X denote the length of run of either successes or failures starting with the first trial. Then the value of E(X) is

  • (a) 2
  • (b) 2.5
  • (c) 3
  • (d) 3.5

Q3. The probability that a death occurs due to heart failure is 0.45 and the probability that a death occurs due to cancer is 0.22. Consider the following statements:

  • (1) The probability that the death is either due to heart failure or due to cancer is 0.67.
  • (2) The probability that the death is due to some other cause (but not these two) is 0.55.
  • (a) 1 only
  • (b) 2 only
  • (c) Both 1 and 2
  • (d) Neither 1 nor 2

Q4. Let X, a continuous random variable, follow U(0, 1) distribution. Then, we assert that

  • (1) P(X ≥ 0.27) = 0.73
  • (2) P(0.27 < X < 1.27) = 0.73
  • (a) 1 only
  • (b) 2 only
  • (c) Both 1 and 2
  • (d) Neither 1 nor 2

Q5. Let X be the number of phone calls received at a call centre during business hours and Y be the number of calls received outside business hours, on a particular day. Assume that X and Y are independent, and follow the Poisson distribution with means λ_1 and λ_2 respectively, where λ_1 ≠ λ_2. Then the conditional distribution of X, given the total number of calls received that day (i.e., X + Y), is

  • (a) Binomial
  • (b) Poisson
  • (c) Discrete Uniform
  • (d) Negative Binomial

Question paper preview

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

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IES ISS 2017 Statistics Paper I question paper page 1 instructions scan PDF download UPSC
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IES ISS 2017 Statistics Paper I question paper page 1 instructions scan PDF download UPSC

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Frequently asked questions

What is the name of the exam?

The exam is the IES/ISS Exam.

Which year is this question paper from?

This question paper is from the year 2017.

Who conducts the IES/ISS Exam?

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

What is the name of this paper?

This is Statistics Paper I.

What is the maximum marks for this paper?

The maximum marks for this paper are 200.

What is the time allowed for this paper?

The time allowed for this paper is Two Hours.

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