1
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
The probability of a man hitting a target is 1/5. If the man fires 7 times, then what is the probability that he hits the target at least twice?
2
NDA Mathematics 13 April 2025
MCQ (Single Correct Answer)
+2.5
-0.833
Let X be a random variable following binomial distribution whose mean and variance are 200 and 160 respectively. What is the value of the number of trials (n)?
3
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
Three distinct natural numbers chosen at random from 1 to 10. What is the probability that they are consecutive?
4
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
A, B, C are three mutually exclusive and exhaustive events associated with a random experiment. If 3P(B) = 4P(A) and 3P(C) = 2P(B), then what is P(A) equal to?
Questions Asked from Probability (Marks 2.5)
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