you apply to 20 graduate programs, 10 of which are in clinical psychology, 5
of which are in counseling, and 5 of which are in social work. you receive a message
from your roommate that you got a letter back from a grad school, but she doesn’t say
which one. calculate the probabilities that the letter is from:
a. a clinical program
b. a counseling program
c. anything but a social work program