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Mathematics
Mathematics
Problem
A fair coin is tossed five times. Which one of the following expressions represents the probability of obtaining at least one tail? a)
5
(
1
2
)
5
5\left(\dfrac12\right)^5
5
(
2
1
)
5
b)
1
−
(
1
2
)
4
1-\left(\dfrac12\right)^4
1
−
(
2
1
)
4
c)
1
−
(
1
2
)
5
1-\left(\dfrac12\right)^5
1
−
(
2
1
)
5
d)
(
1
2
)
5
\left(\dfrac12\right)^5
(
2
1
)
5
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