Coin Or
Author: admin
What is the probability that a coin will land on heads at least one out of three times?
If a coin were tossed three times, the probability that the coin will land on heads at least one of those three times would be 7/8. True or false?
Hi,
True.
Look at it another way: the answer is
1 – (probability that coin is tails all three times)
=
1 -(1/2)(1/2)(1/2)
= 1 – 1/8
= 7/8
hth.
REgards,
Chas.
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