Question

In a class of 10, there are 5 students who play soccer. If the teacher chooses 2 students, what is the probability that both of them play soccer?

Answer 1

5/10=1/2  - if one student  are chosen, who plays soccer
4/9 if then the second student are chosen, who plays soccer
1/2*4/9=2/9 the probability that both  students play soccer