Final answer:
The probability that a senior is going to college and plays sports is 0.25 or 25%.
Step-by-step explanation:
To find the probability that a senior is going to college and plays sports, we need to divide the number of seniors going to college and playing sports by the total number of seniors.
From the given information, we know that there are 50 seniors going to college and playing sports, and the total number of seniors is 200.
Therefore, the probability is 50/200 = 0.25 or 25%.