First from 8:00 a.m to 5:00 p.m it is 9 hrs.
In 1 hr there is 60 mins so
[tex] \frac{60}{5} = 12[/tex] songs per hr
so in 9 hrs
[tex]9(12)=108
[/tex] songs from 8:00 am to 5:00 pm
and the song plays 6 time from 8:00 am to 5:00 pm
So the probability is:
[tex]P= \frac{6}{108} [/tex] [tex]or[/tex] 5.55%