NAT I General Science Statistics With Answers

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NAT I General Science Statistics

Sr. # Questions Answers Choice
1 Which average cannot be compound if any value is less than zero G.M Median Mode A.M
2 Total angle of pie-chart is 270<sup>o</sup> 300<sup>o</sup> 320<sup>o</sup> 360<sup>o</sup>
3 The data which have already been collected by someone are called Secondary data Primary data Arrayed data None of these
4 Statistic is a characteristic calculated from Population data Sample data Arrayed data Fictitious data
5 For r x c contingency table the number if degrees of freedom equals (r - 1) + ( c -1) (r -1) (c - 1) 1 (r x c) -1
6 A graph of time series is called Histogram Polygon Straight line Historigram
7 For a given set of bivariate data if Byx  = 0.52 and bxy = -1.02 then r is 0.73 -0.73 0.00 1.00
8 If the null hypothesis is true the probability error is identified by what name b 1- b a 1- a
9 Accepting Ho when Ho is true is a: Type I error Type II error Correct decision None of these
10 Given N = 5 and n = 3 in simple random sampling with replacement how many possible samples are there? 10 125 60 15
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