BPSC CCE Statistics Question Paper 2025 PDF

Bihar Government Jobs Administrative / Civil Services 2025

  • Year 2025
  • Conducted By BPSC
  • Maximum Marks 300
  • Duration 3 Hours
  • Languages Hindi & English

Exam Details

Detail Information
Examination Combined Competitive Examinations (CCE)
Year 2025
Conducting Body BPSC
Paper Statistics
Subject Statistics
Duration 3 Hours
Maximum Marks 300
Question Type Mixed

This document contains the Statistics question paper for the Combined Competitive Examinations (CCE) conducted by the Bihar Public Service Commission (BPSC) in 2025. The paper is designed to test candidates' knowledge in Statistics, carrying a maximum of 300 marks and a time limit of 3 hours. It includes a mix of objective and descriptive questions, making it a comprehensive assessment for administrative and civil service aspirants in Bihar. Analyzing this paper can provide valuable insights into the exam pattern, difficulty level, and key topics expected in the CCE.

Major Topics Covered

  • Probability
  • Events
  • Conditional Probability
  • Chebychev's Inequality
  • Regression Coefficient
  • Hypothesis Testing
  • Run Test for Randomness
  • Cramer Rao Lower Bound
  • Coin Toss Probability
  • Unbiased Estimator

Why This Paper is Important

  • Useful for Combined Competitive Examinations (CCE) 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

  • BPSC CCE General Studies Paper 2025
  • BPSC CCE Optional Subject Papers 2025
  • Previous Year BPSC CCE Statistics Papers
  • BPSC CCE Statistics Answer Key 2025
  • BPSC CCE Statistics Syllabus
  • BPSC CCE Exam Pattern
  • BPSC CCE Exam Pattern Details
  • BPSC Combined Competitive Examination (CCE)

Instructions

  • निम्नलिखित प्रश्नों के उत्तर दीजिये : (a) If A and B are two events such that P(A) = \frac{1}{3}, P(B) = \frac{1}{4} and P(A \cup B) = \frac{1}{2}, then find out (i) P(\overline{A} \cap \overline{B}) तम काउँदि पर गाउँ सन् उत्तरपत्नी समाधान के सिन्दुक (ii) P[(\overline{A} \cap B) \cup (A \cap \overline{B})] is the distribution of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of (iii) P(A/B) Turkushin saft in (iv) P(B/A) 10 यदि A तथा B दो घटनाएँ इस प्रकार हैं कि P(A) = \frac{1}{3}, P(B) = \frac{1}{4} तथा P(A \cup B) = \frac{1}{2}, तो ज्ञात कीजिये (i) P(\overline{A} \cap \overline{B}) and paul phone with the film (ii) P[(\overline{A} \cap B) \cup (A \cap \overline{B})] is a contract of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the set of the se (iii) P(A/B) vdina ung art sysa dijedi. Ki (iv) P(B/A) (b) Use Chebychev's inequality to determine how many times a fair coin must be tossed in order that the probability will be at least (0.9) that the ratio of the observed number of heads to the number of tosses will lie between (0.4) and 10 (0.6)? चेबीचेव असमिका का प्रयोग करते हुये सिक्कों की उछालों की ऐसी संख्या ज्ञात कीजिये जिसमें इसकी प्रायिकता कम से कम (0.9) हो कि कुल प्राप्त शीर्षों का उछालों से अनुपात (0.4) तथा (0.6) के मध्य हो ? (Turn Over) 02/GO/CC/M-2025-46

Questions (page 2)

Q1.

(c) Yields of wheat for three years are as follows :
Year (X) : 1 2 3
Yield (Y) : Y1 Y2 Y3
Obtain a test for the hypothesis H0: βYX = 0 against H1: βYX ≠ 0, where α = 0.05 and βYX is the regression coefficient of Y on X. गेहूँ की तीन वर्षों की उपज निम्नलिखित हैं:
वर्ष (X) : 1 2 3
उपज (Y) : Y1 Y2 Y3
परिकल्पना H0: βYX = 0 का परीक्षण H1: βYX ≠ 0 के विरुद्ध ज्ञात कीजिये, जबकि α = 0.05 तथा βYX, Y का X पर समाश्रयण गुणांक है।

(d) Describe run test for randomness with examples. उदाहरणों के साथ यादृच्छिकता के लिए रन परीक्षण का वर्णन कीजिये ।

(e) Under what conditions the inequality becomes an equality in case of Cramer Rao lower bound ? Explain it and cite an example. क्रेमर राव निम्नतम प्रतिबन्ध में असमता किन परिस्थितियों में समता बन जाती है ? इसे समझाइये तथा एक उदाहरण दीजिये ।

Q2.

(a) Four unbiased coins are tossed simultaneously. Find the probability of getting exactly three tails if it is known that first toss is a tail. चार अनभिनत सिक्के एक साथ उछाले जाते हैं। अगर यह ज्ञात है कि पहले सिक्के पर पट (टेल) है, तो तीन पट (टेल) मिलने की प्रायिकता ज्ञात कीजिये ।

(b) Let Y have the probability function fY(n) = \binomn + r-1n pr qn; n = 0, 1, 2, ..., p > 0, p + q = 1, show that T = \((r-1))/(r + y-1)\ is an unbiased estimator of p. माना कि Y का प्रायिकता फलन fY(n) = \binomn + r-1n pr qn; n = 0, 1, 2, ..., p > 0, p + q = 1, दिखाइये कि T = \((r-1))/(r + y-1)\, p का अनभिनत आकलक है।

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Frequently asked questions

What is the name of the exam?

The exam is the Combined Competitive Examinations (CCE).

Which board conducts the CCE exam?

The CCE exam is conducted by the BPSC (Bihar Public Service Commission).

What is the subject of this question paper?

The subject of this question paper is Statistics.

What is the year of this question paper?

The year of this question paper is 2025.

What is the maximum marks for the Statistics paper?

The maximum marks for the Statistics paper is 300.

What is the time duration allowed for the paper?

The time allowed for the paper is 3 Hours.

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