Answer:0.017578
Step-by-step explanation:
Given
Nine coins are flipped
So the probability of getting a tail is [tex]\frac{1}{2}[/tex]
Because on flipping a coin could either yield Head or tail
so getting a tail on nine trails is [tex]\frac{1}{2^9}[/tex]
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 [tex]9\times \frac{1}{2^9}[/tex]
[tex]=\frac{9}{2^9}=0.017578[/tex]
