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NIELIT -2017 Exam Engineering maths Maths Quiz -2

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Question 1

Which is not the correct statement?

Question 2

Let

denote

and let there be two quantifications given as
i.

ii.

Where x and y are real numbers. Then which of the following is valid?

Question 3

Give a compound proposition involving propositions p, q and r that is true when exactly two of p, q and r are true and is false otherwise.

Question 4

The power set of AUB, where A = {2, 3, 5, 7} and B = {2, 5, 8, 9} is

Question 5

The power set of the set

Question 6

Let X and Y denote the sets containing 2 and 20 distinct objects respectively and F denote the set of all possible functions defined from X to Y. Let f be randomly chosen from F. The probability of f being one-to-one is ___________.

Question 7

If a random variable X has a Poisson distribution with mean 5, then the expectation

equals _____

Question 8

If a coin is tossed n-times, what is the probability that head will appear odd number of items?

Question 9

A and B are two given matrices such that the order of A is 3 x 4. If A’B and B’A are both defined then order of BA' is

Question 10

Consider the matrix

The sum of its eigen values is _____.

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