SOLUTION: If a coin was tossed four times, what is the probability that the coin will land on heads at least one of those times?

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Question 372563: If a coin was tossed four times, what is the probability that the coin will land on heads at least one of those times?

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Work the problem backwards.
Find the probability that the coin will only land tails each time.
P%28H%29=0.5
P%28T%29=0.5
.
.
P%28TTTT%29=%280.5%29%280.5%29%280.5%29%280.5%29=0.0625
.
.
P(4 tails)+P(not 4 tails)=1
P(not 4 tails)=P(at least one head)=1-P(4 tails)
P=1-0.0625
highlight%28P=0.9375%29