Asurvey of teenagers found the music preferences listed. if you pick a teenager at random, what is p(rock)?
country : 12
jazz : 5
rock : 7
classical : 6
new age : 6
other : 4
a.33/40
b.1/7
c.7/40
d.1

        We can see from this survey that 7 teenagers prefer rock and roll.
        The number of all teenagers in the survey is:
        12 + 5 + 7 + 6 + 6 + 4 = 40
        P ( rock ) = 7 / 40
        C ) 7 / 40

1.3 and 1 1/3 are both closest to 1. hope this ; )