Answer:
72.41% chance of picking a student that plays basketball or baseball.
Step-by-step explanation:
[tex]\frac{21}{29} = 0.724137931[/tex]
Convert the decimal into a percent, and there's your answer!
If there are 31 students in the class, then the answer would be a 67.74% chance of picking a student that plays basketball or baseball. Just in case.