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

Ba counseling program

Canything but a social work program