1
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Direction: Consider the following for the next two (02) items that follow.
The marks obtained by 60 students in a certain subject out of 75 are given below:
Marks | Number of Students |
15 - 20 | 4 |
20 - 25 | 5 |
25 - 30 | 11 |
30 - 35 | 6 |
35 - 40 | 5 |
40 - 45 | 8 |
45 - 50 | 9 |
50 - 55 | 6 |
55 - 60 | 4 |
60 - 65 | 2 |
What is the mode?
2
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
What is the mean of natural numbers in the interval [15, 64]?
3
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
For the set of numbers x, x, x + 2, x + 3, x + 10 where x is a natural number, which of the following is/are correct?
1. Mean > Mode
2. Median > Mean
Select the correct answer using the code given below.
4
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
The mean of 10 observations is 5.5. If each observation is multiplied by 4 and subtracted from 44, then what is the new 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