First, you should find the probability of NOT getting a tail in 5 flips of coins.
[tex](\frac{1}{2})^5=\frac{1}{32}[/tex]After that, you should find the probability of getting at least 1 tail in 5 flips of coins.
[tex]1-\frac{1}{32}=\frac{32-1}{32}=\frac{31}{32}[/tex]Answer:
[tex]\frac{31}{32}[/tex]