1
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
For given statistical data, the graphs for less than ogive and more than ogive are drawn. If the point at which the two curves intersect is P, then abscissa of point P gives the value of which one of the following measures of central tendency?
2
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
If the regression coefficient of x on y and y on x are $$ - {1 \over 2}$$ and $$ - {1 \over 8}$$, respectively then what is the correlation coefficient between x and y?
3
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
A sample of 5 observations has mean 32 and median 33. Later it is found that an observation was recorded incorrectly as 40 instead of 35. If we correct the data, then which one of the following is correct?
4
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The correlation coefficient computed from a set of 30 observations is 0.8. Then, the percentage of variation not explained by linear regression is
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