The minimum number of times one has to toss a
\( \mathrm{P} \) fair...
The minimum number of times one has to toss a
\( \mathrm{P} \) fair coin so that the probability of observing at least
W one head is at least \( 90 \% \) is:
(1) 2
(2) 3
(3) 4
(4) 5
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