1
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
An unbiased coin is tossed until the first head appears or until four tosses are completed, whichever happens earlier. Which of the following statement(s) is/are correct?
1. The probability that no head is observed is $${1 \over {16}}$$.
2. The probability that the experiment ends with three tosses is $${1 \over {8}}$$.
Select the correct answer using the code given below.
1. The probability that no head is observed is $${1 \over {16}}$$.
2. The probability that the experiment ends with three tosses is $${1 \over {8}}$$.
Select the correct answer using the code given below.
2
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If x$$\in$$[0, 5], then what is the probability that x2 $$-$$ 3x + 2 $$\ge$$ 0 ?
3
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A bag contains 4 white and 2 black balls and another bag contains 3 white and 5 black balls. If one ball is drawn from each bag, then the probability that one ball is white and one ball is black, is
4
NDA 2015 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
A problem in Statistics is given to three students A, B and C whose chances of solving it independently are $${1 \over 2}$$, $${1 \over 3}$$ and $${1 \over 4}$$, respectively. The probability that the problem will be solved, is
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