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A fair coin is tossed 10 times. The probability of getting **exactly 6 heads** is:
A$105/512$
B$210/1024$
CBoth A and B (same fraction)
D$1/2$
Answer & Solution
Correct answer: C. Both A and B (same fraction)
$P(X = 6) = {}^{10}C_6 (1/2)^{10} = 210 \cdot 1/1024 = 210/1024 = 105/512$. Both answers represent the same value.
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