1
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The set of bivariate observations (x1, y1), (x2, y2), ....... (xn, yn) are such that all the values are distinct and all the observations fall on a straight line with non-zero slope. Then, the possible values of the correlation coefficient between x and y are
2
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
An analysis of monthly wages paid to the workers in two firms A and B belonging to the same industry gives the following result
Image
The average of monthly wage and variance of distribution of wages of all the workers in the firms A and B taken together are
Image
The average of monthly wage and variance of distribution of wages of all the workers in the firms A and B taken together are
3
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following can be obtained from an ogive?
4
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
In any discrete series (when all values are not same), if x represents mean deviation about mean and y represents standard deviation, then which one of the following is correct?
Questions Asked from Statistics (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
NDA Subjects
Mathematics
Algebra
Sets, Relations and Functions Logarithms Quadratic Equations and Inequalities Sequence And Series Binomial Theorem Matrices Determinants Permutations and Combinations Probability Complex Numbers Vector Algebra Three Dimensional Geometry Statistics
Trigonometry
Trigonometric Angles and Equations Inverse Trigonometric Function Height and Distance Properties of Triangles
Coordinate Geometry
Calculus
English
General Studies