1
NDA Mathematics 3 September 2023
MCQ (Single Correct Answer)
+2.5
-0.83
If the mean and the sum of squares of 10 observations are 40 and 16160 respectively, then what is the standard deviation?
2
NDA Mathematics 3 September 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Three dice are thrown. What is the probability of getting a sum which is a perfect square?
3
NDA Mathematics 3 September 2023
MCQ (Single Correct Answer)
+2.5
-0.83
A, B, C and D are mutually exclusive and exhaustive events.
If 2P(A) = 3P(B) = 4P(C) = 5P(D), then what is 77P(A) equal to ?
4
NDA Mathematics 3 September 2023
MCQ (Single Correct Answer)
+2.5
-0.83
Two distinct natural numbers from 1 to 9 are picked at random. What is the probability that their product has 1 in its unit place?
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Total Questions
Mathematics
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