Algebra
Sets, Relations and Functions
MCQ (Single Correct Answer)
Quadratic Equations and Inequalities
MCQ (Single Correct Answer)
Sequence And Series
MCQ (Single Correct Answer)
Permutations and Combinations
MCQ (Single Correct Answer)
Three Dimensional Geometry
MCQ (Single Correct Answer)
Trigonometry
Trigonometric Angles and Equations
MCQ (Single Correct Answer)
Inverse Trigonometric Function
MCQ (Single Correct Answer)
Height and Distance
MCQ (Single Correct Answer)
Properties of Triangles
MCQ (Single Correct Answer)
Calculus
Limit, Continuity and Differentiability
MCQ (Single Correct Answer)
Application of Derivatives
MCQ (Single Correct Answer)
Indefinite Integration
MCQ (Single Correct Answer)
Definite Integration
MCQ (Single Correct Answer)
Area Under The Curves
MCQ (Single Correct Answer)
Differential Equations
MCQ (Single Correct Answer)
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 ?

A
37.5%
B
38.0%
C
38.5%
D
39.0%
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 ?

A
34
B
34.5
C
35
D
35.5
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 ?

A
11.4
B
11.1
C
10.8
D
10.5
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 ?

A
10.15
B
10.65
C
11.15
D
11.65