NDA questions
2827 published questions with worked solutions.
- There are n socks in a drawer, of which 3 socks are red. If 2 of the socks are chosen randomly and the probability that both...
- In eight throws of a die, 5 or 6 is considered a success. The mean and standard deviation of total number of successes is...
- A and B are two events such that A and B are mutually exclusive. If P(A)=0 5 and P(B)=0 6, then what is the value of P(A B)?
- Consider the following statements : 1. The algebraic sum of deviations of a set of values from their arithmetic mean is always...
- Let the correlation coefficient between X and Y be 0 6. Random variables Z and W are defined as Z=X+5 and W= Y 3 . What is the...
- If all the natural numbers between 1 and 20 are multiplied by 3, then what is the variance of the resulting series?
- What is the probability that an interior point in a circle is closer to the centre than to the circumference?
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