NAT I General Science Statistics With Answers

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NAT I General Science Statistics

Sr. # Questions Answers Choice
1 Variance remains unchanged by change of: Origin Scale Both None of them
2 Standard deviation is calculated from harmonic mean: Always Never Often None of them
3 If y = 5x + 10, then mean deviation of y is 5 mean deviation (x) 25 mean deviation (x) 5 mean deviation (x) + 10 None of them
4 The median of A,S,S,O,C,I,A,T,E is: S O I None of them
5 The geometric mean of the values -2,4,-3,6,0 is: -3 0 3 Cannot be computed
6 If z = x - y then ̅̅̅̅̅̅z̅ is: x̅+y̅ x̅ - y̅ 0 x̅y̅
7 A random variable is of types: 3 2 1 4
8 The science of statistics can be divided into branches: 2 3 5 4
9 In hypergeometric distribution the trials are: Independent Dependent Both a and b None of these
10 The parameters of the binomial distribution are: p and q q and n n and p n,p and q
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