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g100num [7]
3 years ago
6

Find the probability of obtaining exactly one tail when flipping nine coins. Express your as fraction terms on a rounded the nea

rest millionth
Mathematics
1 answer:
Sveta_85 [38]3 years ago
6 0

Answer:0.017578

Step-by-step explanation:

Given

Nine coins are flipped

So the probability of getting a tail is \frac{1}{2}

Because on flipping a coin could either yield Head or tail

so getting a tail on nine trails is \frac{1}{2^9}

but this tail can come on first coin or second or third ....

So there are 9 possible ways

So probability of getting a tail on flipping nine coin is 9\times \frac{1}{2^9}

=\frac{9}{2^9}=0.017578

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