Question

a medical clinic is randomly selecting two staff
members to attend a conference. the clinic employs
include 7 nurses, 3 doctors, and 2 office staff. the
nurses want to know the probability that both attendees
will be idurses. the tree diagram displays the possible
outcomes of randomly selecting two staff members.
which staff member is represented by label 1 in the
tree diagram?
doctor
not nurse
not doctor
office staff

Explanation:

The total number of staff members is \(7 + 3+2=12\). The first - level branches of the tree diagram represent the first selection. The number of non - nurses is \(3 + 2=5\). Since the first - level branch labeled \(3\) (the number of non - nurses) leads to the label \(1\) in the tree diagram.

Answer:

Not nurse