At a certain college, there were 780 science majors, 320 engineering majors, and 390 business majors. If one student was selected at random, the probability that they are a business major is?

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.

390/(780+320+390) = ?

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

In this case, there are 780 science majors, 320 engineering majors, and 390 business majors. To find the total number of students, we can add these three numbers together:

Total number of students = 780 + 320 + 390 = 1490

Therefore, the probability that a randomly selected student is a business major is calculated as follows:

Probability = Number of business majors / Total number of students
Probability = 390 / 1490

Thus, the probability that a randomly selected student is a business major is 390/1490, which can be simplified if needed.