the probability that a random selected student walks to the school is 19.5%, the correct option is D.
How to find the probability?
We want to find the probability that a random selected student walks to the school.
To find it, we just need to take the quotient between the number of students that walk to the school and the total number of students.
The number of students that walk to the school is:
42 + 36 = 78
The total number of students is:
85 + 77 + 30 + 47 + 42 + 36 + 44 + 39 = 400
Then the probability is:
P = 78/400 = 0.195
To get this in percentage form, we just multiply by 100%.
0.195*100% = 19.5%
The correct option is D.
If you want to learn more about probability:
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