1
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Let A and B are two mutually exclusive events with $$P(A) = {1 \over 3}$$ and $$P(B) = {1 \over 4}$$. What is the value of $$P(\overline A \cap \overline B )$$ ?
A
$${1 \over 6}$$
B
$${1 \over 4}$$
C
$${1 \over 3}$$
D
$${5 \over {12}}$$
2
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
The mean and standard deviation of a binomial distribution are 12 and 2 respectively. What is the number of trials ?
A
2
B
12
C
18
D
24
3
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If two dice are thrown and at least one of the dice shows 5, then the probability that the sum is 10 or more is
A
$${1 \over 6}$$
B
$${4 \over 11}$$
C
$${3 \over 11}$$
D
$${2 \over 11}$$
4
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Let A, B and C be three mutually exclusive and exhaustive events associated with a random experiment. If P(B) = 1.5 P(A) and P(C) = 0.5 P(B), then P(A) is equal to
A
$${3 \over 4}$$
B
$${4 \over 13}$$
C
$${2 \over 3}$$
D
$${1 \over 2}$$
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