Of the last 60 people who went to the cash register at a department store, 13 had blond hair, 18 had black hair, 22 had brown hair, and 7 had red hair. Determine the empirical probability that the next person to come to the cash register has black hair,
P(black)=

3/10

The seventh-grade students at charleston middle school are choosing one girl and one boy for student council. their choices for girls are michaela (m), candice (c), and raven (r), and for boys, neil (n), barney (b), and ted (t). the sample space for the combined selection is represented in the table. complete the table and the sentence beneath it.