1
GATE ME 2009
MCQ (Single Correct Answer)
+1
-0.3
If three coins are tossed simultaneously, the probability of getting at least one head is
A
$$1/8$$
B
$$3/8$$
C
$$1/2$$
D
$$7/8$$
2
GATE ME 2009
MCQ (Single Correct Answer)
+1
-0.3
The standard deviation of a uniformly distributed random variable $$b/w$$ $$0$$ and $$1$$ is
A
$${1 \over {\sqrt {12} }}$$
B
$${1 \over {\sqrt {3} }}$$
C
$${5 \over {\sqrt {12} }}$$
D
$${7 \over {\sqrt {12} }}$$
3
GATE ME 2008
MCQ (Single Correct Answer)
+1
-0.3
A coin is tossed $$4$$ times. What is the probability of getting heads exactly $$3$$ times?
A
$$1/4$$
B
$$3/8$$
C
$$1/2$$
D
$$3/4$$
4
GATE ME 2005
MCQ (Single Correct Answer)
+1
-0.3
A lot had $$10$$% defective items. Ten items are chosen randomly from this lot. The probability that exactly $$2$$ of the chosen items are defective is
A
$$0.0036$$
B
$$0.1937$$
C
$$0.2234$$
D
$$0.3874$$
GATE ME Subjects
Turbo Machinery
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12