Answer:
24
Step-by-step explanation:
4 tasks
4 students
[tex]A(4.4)=4\times3\times2\times1=24[/tex] [tex]\left\{random\ possibility\right\}[/tex]
There are 4 students for the first task, then 3 students for the second task (one student was taken away), then two for the third, and one for the fourth. That adds up to 4*3*2*1 = 24 ways.