1

GATE IN 2013

MCQ (Single Correct Answer)

+1

-0.3

A continuous random variable $$X$$ has a probability density function $$f\left( x \right) = {e^{ - x}},0 < x < \infty .$$ Then $$P\left\{ {X > 1} \right\}$$ is

2

GATE IN 2012

MCQ (Single Correct Answer)

+1

-0.3

Two independent random variables $$X$$ and $$Y$$ are uniformly distributed in the interval $$\left[ { - 1,1} \right].$$ The probability that max $$\left[ {X,Y} \right]$$ is less than $$1/2$$ is

3

GATE IN 2009

MCQ (Single Correct Answer)

+1

-0.3

A screening test is carried out to detect a certain disease. It is found that $$12$$% of the positive reports and $$15$$% of the negative reports are incorrect. Assuming that the probability of a person getting positive reports is $$0.01,$$ the probability that a person tested gets an incorrect reports is

4

GATE IN 2008

MCQ (Single Correct Answer)

+1

-0.3

A random variable is uniformly distributed over the interval $$2$$ to $$10.$$ Its variance will be

Questions Asked from Probability and Statistics (Marks 1)

Number in Brackets after Paper Indicates No. of Questions

GATE IN Subjects