Probability Question 133
If two coins are tossed 5 times, then the probability of getting 5 heads and 0 tails is
[AMU 2002]
Options:
A) $ \frac{63}{256} $
B) $ \frac{1}{1024} $
C) $ \frac{2}{205} $
D) $ \frac{9}{64} $
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Answer:
Correct Answer: A
Solution:
Probability for a head $ =\frac{1}{2}, \text{i.e.}, p=\frac{1}{2} $
$ \therefore $$ q=\frac{1}{2} $ in a toss. Required probability $ {{=}^{10}}C_5{{( \frac{1}{2} )}^{10}}=\frac{252}{1024} $ .
BETA
