Answer with explanation:
Given : Number of individual needed to be selected to form jury = 4
Number of students = 13
Number of faculty members = 6
Total = 13+6=19
Using combinations , the number of combinations of choosing jury of 4 individuals
=

a) Number of ways of selecting jury of all students
=

The probability of selecting a jury of all faculty=

b) The number of ways of selecting jury of all faculty=

The probability of selecting a jury of all faculty=

c) The number of ways of selecting jury of 2 students and two faculty:

Now, the probability of selecting a jury of six students and two two faculty
