Q82 / 160 · WBJEE 2011 · Mathematics

A coin is tossed again and again. If tail appears on first three tosses, then the chance that head appears on fourth toss is

A
\(\frac{1}{16}\)
Correct answer
B
\(\frac{1}{2}\)
C
\(\frac{1}{8}\)
D
\(\frac{1}{4}\)

Solution

Hints: \(p=1.1 .1 \cdot \frac{1}{2}=\frac{1}{2}\)

Hence, the correct answer is option: 'B'.

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