1
GATE EE 2012
MCQ (Single Correct Answer)
+2
-0.6
A fair coin is tossed till a head appears for the first time. The probability that the number of required tosses is odd, is
A
$$1/3$$
B
$$1/2$$
C
$$2/3$$
D
$$3/4$$
2
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
A fair coin is tossed $$3$$ times in succession. If the first toss produces a head, then the probability of getting exactly two heads in three tosses is
A
$${1 \over 8}$$
B
$${1 \over 2}$$
C
$${3 \over 8}$$
D
$${3 \over 4}$$
GATE EE Subjects
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Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12