Respuesta :
Answer:
Here, we want to calculate the probability that a student selected is a senior student or one that drives to school.
From the table, the number of senior students is 25 + 5 + 5 = 35
So the probability of selecting a senior student is 35/100 = 7/20
Now the probability of selecting a student that drives to school.
The number of students that drive to school is 2 + 13 + 25 = 40
So the probability of a student who drives to school is 40/100
Kindly recall that when we have or and we are dealing with probability, we add the concerned terms together
Thus the probability of randomly selecting a student who is a senior or drives to school = Probability of being a senior + Probability of driving to school = 35/100 + 40/100 = 75/100 = 3/4
Explanation: