GATE ME 2010 | Probability and Statistics Question 31 | Engineering Mathematics

GATE ME 2010

MCQ (Single Correct Answer)

-0.3

A box contains $$2$$ washers, $$3$$ nuts and $$4$$ bolts. Items are drawn from the box at random one at a time without replacement. The probability of drawing $$2$$ washers first followed by $$3$$ nuts and subsequently the $$4$$ bolts is

$$2/315$$

$$1/630$$

$$1/1260$$

$$1/2520$$

GATE ME 2009

MCQ (Single Correct Answer)

-0.3

The standard deviation of a uniformly distributed random variable $$b/w$$ $$0$$ and $$1$$ is

$${1 \over {\sqrt {12} }}$$

$${1 \over {\sqrt {3} }}$$

$${5 \over {\sqrt {12} }}$$

$${7 \over {\sqrt {12} }}$$

GATE ME 2009

MCQ (Single Correct Answer)

-0.3

If three coins are tossed simultaneously, the probability of getting at least one head is

$$1/8$$

$$3/8$$

$$1/2$$

$$7/8$$

GATE ME 2008

MCQ (Single Correct Answer)

-0.3

A coin is tossed $$4$$ times. What is the probability of getting heads exactly $$3$$ times?

$$1/4$$

$$3/8$$

$$1/2$$

$$3/4$$

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