Beth has a box containing music cds. each cd contains songs from only one of these three genres: pop (p), hip-hop (h), and rock (r). she picks one cd from the box, replaces it, and then picks another cd. the sample space for this event is listed.

(p-p) (h-p)(r-p)
(p-h) (h-h )(r-h)
(p-r) (r-r)

what is the missing term for this compound event? what is the sample size?

a)the missing term is h-p, and the sample size is 9.
b)the missing term is h-r, and the sample size is 9.
c)the missing term is h-p, and the sample size is 3.
d)the missing term is h-r, and the sample size is 3.
note: only one answer