SOLUTION: Let's take a fair (unbiased) coin and toss it 10 times. What is the probability getting at least 1 head in any of the trials? a) 1/10 b) 1/20 c) 1/(2^10) d) 1-(1/(2^10)) Expla

Algebra ->  Probability-and-statistics -> SOLUTION: Let's take a fair (unbiased) coin and toss it 10 times. What is the probability getting at least 1 head in any of the trials? a) 1/10 b) 1/20 c) 1/(2^10) d) 1-(1/(2^10)) Expla      Log On


   

Question 869379: Let's take a fair (unbiased) coin and toss it 10 times. What is the probability getting at least 1 head in any of the trials?
a) 1/10
b) 1/20
c) 1/(2^10)
d) 1-(1/(2^10))
Explain your answer:

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let's find the probability of getting no heads in 10 trials because the probability of at least 1 head plus the probability of no heads equals 1.
P%28H=0%29=%280.5%29%5E10
P%28H%3E0%29=1-0.5%5E10
Which is equivalent to d)