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Pune University - SY BSc (Sem - II) STATISTICS, April 2010

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Total No. of Questions : 4] [Total No. of Pages :3 [3717] - 214 S.Y. B.Sc. STATISTICS ST-222: Continuous Probability Distributions - II and Demography P492 (New Course) (Sem. - II) Time : 2 Hours] [Max. Marks : 40 Instructions to the Candidates: 1) All questions are compulsory. 2) Figures to the right indicate full marks. 3) 4) Use of calculator and statistical tables is allowed. Symbols and abbreviations have their usual meaning. Q1) Attempt each of the following: a) [1 ] Choose the correct alternative in each of the following: i) Suppose X follows Chi-Square distribution with mode 6 then E(X) is A) C) ii) 4 6 B) 8 D) 5 Let X1, X2,...,X20 be a random sample (r.s.) from N(25,80) with S2 is sample variance S . Then the distribution of 4 2 A) B) 2 25 C) iii) 2 4 129 D) 2 20 Suppose X1, X2, ..., X10 is a r.s from normal population with mean and known variance 2 . Then under H0 : = 4 , the statistic 10 (X 4) follows: A) N(0,1) B) t9 C) t10 D) t4 P.T.O.

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Additional Info : S.Y. B.Sc. Statistics (Semister - II), ST - 222 : Continuous Probability Distributions - II & Demography (New Course), Pune University
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