1
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
The mean and standard deviation (SD) of marks obtained by 50 students of a class in 4 subjects are given below :
| Subject | Mathematics | Physics | Chemistry | Biology |
| Mean Marks | 40 | 28 | 38 | 36 |
| SD | 15 | 12 | 14 | 16 |
What is the coefficient of variation of marks in Mathematics ?
2
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following grouped frequency distribution :
| Class | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 |
| Frequency | 1 | 2 | 4 | 6 | 4 | 3 |
What is the median of the distribution ?
3
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following grouped frequency distribution :
| Class | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 |
| Frequency | 1 | 2 | 4 | 6 | 4 | 3 |
What is mean deviation about the median ?
4
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following grouped frequency distribution :
| Class | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 |
| Frequency | 1 | 2 | 4 | 6 | 4 | 3 |
What is the mean deviation about the mean ?
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