Answer:
Step-by-step explanation:
Sample space, n = 100
Let the number of students signed up for CSE 311 = a
Let the number of students signed up for CSE 312 = b
Let the number of students signed up for CSE 331 = c
Let the number of students signed up for CSE 332 = d
Probability of taking CSE 311, = 0.3
Probability of taking CSE 312, = 0.4
Probability of taking CSE 331, = 0.1
Probability of taking CSE 332, = 0.2