1
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
In a binomial distribution, the mean is three times its variance. What is the probability of exactly 3 successes out of 5 trials ?
2
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following statements
I. P($$\overline A $$ $$\cup$$ B) = P($$\overline A $$) + P(B) $$-$$ P($$\overline A $$ $$\cap$$ B)
II. P(A $$\cap$$ $$\overline B $$) = P(B) $$-$$ P(A $$\cap$$ B)
III. P(A $$\cap$$ B) = P(B) P(A / B)
Which of the above statements are correct?
I. P($$\overline A $$ $$\cup$$ B) = P($$\overline A $$) + P(B) $$-$$ P($$\overline A $$ $$\cap$$ B)
II. P(A $$\cap$$ $$\overline B $$) = P(B) $$-$$ P(A $$\cap$$ B)
III. P(A $$\cap$$ B) = P(B) P(A / B)
Which of the above statements are correct?
3
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
The probabilities that a student will solve Question A and Question B are 0.4 and 0.5 respectively. What is the probability that he solves at least one of the two questions ?
4
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Two fair dice are rolled. What is the probability of getting a sum of 7 ?
Questions Asked from Probability (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