at a certain college, there were 700 science majors,100 engineering majors and 500 business majors. if one student was selected at random, the probability that they are an engineering major is?

100/1300 = 1/13

To find the probability that a randomly selected student is an engineering major, we'll need to consider the total number of students in the college. The total number of students is the sum of the number of science majors, engineering majors, and business majors.

Total number of students = Number of science majors + Number of engineering majors + Number of business majors
Total number of students = 700 + 100 + 500
Total number of students = 1300

Now, we can calculate the probability that a student is an engineering major by dividing the number of engineering majors by the total number of students.

Probability of selecting an engineering major = Number of engineering majors / Total number of students
Probability of selecting an engineering major = 100 / 1300

To simplify the fraction, we can divide the numerator and denominator by 100:
Probability of selecting an engineering major = 1 / 13

Therefore, the probability that a randomly selected student is an engineering major is 1/13.

To find the probability that a randomly selected student is an engineering major, we need to divide the number of engineering majors by the total number of students.

First, let's calculate the total number of students:

Total number of students = Number of science majors + Number of engineering majors + Number of business majors
= 700 + 100 + 500
= 1300

Next, we can calculate the probability:

Probability of selecting an engineering major = Number of engineering majors / Total number of students
= 100 / 1300
≈ 0.0769

Therefore, the probability that a randomly selected student is an engineering major is approximately 0.0769 or 7.69%.