1
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The regression coefficients of a bivariate distribution are $$-$$0.64 and $$-$$0.36. Then, the correlation coefficient of the distribution is
2
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The geometric mean of the observations x1, x2, x3, ......., xn is G1. The geometric mean of the observations y1, y2, y3, ......, yn is G2. The geometric mean of observations $${{{x_1}} \over {{y_1}}},{{{x_2}} \over {{y_2}}},{{{x_3}} \over {{y_3}}},....,{{{x_n}} \over {{y_n}}}$$ is
3
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The arithmetic mean of 1, 8, 27, 64, ...... upto n terms is given by
4
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following statements.
I. The mean and median are equal in symmetric distribution.
II. The range is the difference between the maximum value and the minimum value in the data.
III. The sum of the areas of the rectangles in the histogram is equal to the total area bounded by the frequency polygon and the horizontal axis.
Which of the above statements are correct?
I. The mean and median are equal in symmetric distribution.
II. The range is the difference between the maximum value and the minimum value in the data.
III. The sum of the areas of the rectangles in the histogram is equal to the total area bounded by the frequency polygon and the horizontal axis.
Which of the above statements are correct?
Questions Asked from Statistics (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
NDA Subjects
Mathematics
Algebra
Sets, Relations and FunctionsLogarithmsQuadratic Equations and InequalitiesSequence And SeriesBinomial TheoremMatricesDeterminantsPermutations and CombinationsProbabilityComplex NumbersVector AlgebraThree Dimensional GeometryStatistics
Trigonometry
Trigonometric Angles and EquationsInverse Trigonometric FunctionHeight and DistanceProperties of Triangles
Coordinate Geometry
Calculus
English
General Studies