In a particular class, there are 3 freshmen, 5 sophomores, 11 juniors, and 2 seniors. If the instructor randomly chooses a student to answer a question in class, what is the probability that the student chosen will be a freshman?
3/(3+5+11+2) = ?
puussy
To find the probability that the student chosen will be a freshman, we need to divide the number of freshmen by the total number of students in the class.
Total number of students = 3 freshmen + 5 sophomores + 11 juniors + 2 seniors = 21 students
Number of freshmen = 3
Probability = Number of freshmen / Total number of students = 3 / 21 = 1/7
Therefore, the probability that the student chosen will be a freshman is 1/7.
To find the probability of choosing a freshman student, we need to divide the number of freshmen by the total number of students in the class.
In this case, the total number of students in the class is the sum of freshmen, sophomores, juniors, and seniors:
Total number of students = 3 (freshmen) + 5 (sophomores) + 11 (juniors) + 2 (seniors) = 21 students.
The number of freshmen is 3.
Now, we can calculate the probability of choosing a freshman student:
Probability = Number of favorable outcomes / Total number of outcomes
In this case, the number of favorable outcomes is 3 (number of freshmen) and the total number of outcomes is 21 (total number of students).
So, the probability of choosing a freshman student is:
Probability = 3 / 21 = 1 / 7
Therefore, the probability that the student chosen will be a freshman is 1/7.