1
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?
2
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
If g is the geometric mean of 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, then which one of the following is correct?
3
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
What is the mean deviation of first 10 even natural numbers?
4
NDA Mathematics 14 November 2021
MCQ (Single Correct Answer)
+2.5
-0.83
If $\rm \displaystyle \sum_{i = 1}^{10}x_i = 110$ and $\rm \displaystyle \sum_{i = 1}^{10}x_i^2 = 1540$ then what is the variance?
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