To determine how many students ride in a bus or car, we can look at the numbers in the two-way frequency table for the "Bus" and "Car" columns.
From the data provided, we only need to extract the relevant numbers:
- For 10th grade:
- Bus: 16
- Car: 14
- For 11th grade:
- Bus: 9
- Car: 20
- For 12th grade:
- Bus: 1
- Car: 22
Now, we'll sum these values for both the Bus and Car categories:
- Total for Bus: 16 + 9 + 1 = 26
- Total for Car: 14 + 20 + 22 = 56
Now, we add together the totals for Bus and Car:
Total Bus or Car = Total Bus + Total Car = 26 + 56 = 82
So, the total number of students who ride in a bus or car is 82.
Thus, the correct answer is 82.