1
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A coin is biased so that heads comes up thrice as likely as tails. For three independent tosses of a coin, what is the probability of getting at most two tails?
2
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If a coin is tossed till the first head appears, then what will be the sample space?
3
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The mean weight of 150 students in a certain class is 60 kg. The mean weight of boys is 70 kg and that of girls is 55 kg. What are the number of boys and girls respectively in the class?
4
NDA 2019 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If a fair die is rolled 4 times, then what is the probability that there are exactly 2 sixes ?
Questions Asked from Probability (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
NDA Mathematics 13 April 2025 (11)
NDA Mathematics 1st September 2024 (13)
NDA Mathematics 21 April 2024 (11)
NDA Mathematics 3 September 2023 (13)
NDA Mathematics 16 April 2023 (8)
NDA Mathematics 4 September 2022 (12)
NDA Mathematics 10 April 2022 (7)
NDA Mathematics 14 November 2021 (8)
NDA Mathematics 18 April 2021 (5)
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