Answer
tennis and football only: 3 students
tennis and baseball only: 11 students
baseball and football only: 14 students
Work Step by Step
22 like tennis
25 like football
9 like tennis and football
17 like tennis and baseball
20 like football and baseball
6 like tennis, football, baseball
4 like none
tennis and football - all three sports = tennis and football only
$ 9 - 6 = 3$
tennis and baseball - all three sports = tennis and baseball only
$17 - 6 = 11$
baseball and football - all three sports = baseball and football only
$20 - 6 = 14$