GATE CSE 2012 | GATE CSE Year Wise Previous Years Questions

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GATE CSE 2012

MCQ (Single Correct Answer)

-0.3

What is the correct translation of the following statement into mathematical logic? "Some real numbers are rational"

$$\exists x\left( {real\left( x \right) \vee rational\left( x \right)} \right)$$

$$\forall x\left( {real\left( x \right) \to rational\left( x \right)} \right)$$

$$\exists x\left( {real\left( x \right) \wedge rational\left( x \right)} \right)$$

$$\exists x\left( {rational\left( x \right) \to real\left( x \right)} \right)$$

GATE CSE 2012

MCQ (Single Correct Answer)

-0.3

The truth table GATE CSE 2012 Discrete Mathematics - Mathematical Logic Question 37 English

Represents the Boolean function

$$X$$

$$X+Y$$

$$X \oplus Y$$

$$Y$$

GATE CSE 2012

MCQ (Single Correct Answer)

-0.3

Consider a random variable X that takes values + 1 and-1 with probability 0.5 each.
The values of the cumulative distribution function F(x) at x = - 1 and + 1 are

0 and 0.5

0 and 1

0.5 and 1

0.25 and 0.75

GATE CSE 2012

MCQ (Single Correct Answer)

-0.6

Suppose a fair six-sided die is rolled once. If the value on the die is 1, 2 or 3 the die is rolled a second time. What is the probability that the sum total of values that turn up is at least 6?

10/21

5/12

2/3

1/6

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