A middle school has 450 students. In a random sample of 100 students, 8 students indicated that they have traveled outside the United States. Predict the number of students at the middle school who have traveled outside the United States.

Answer 1

We can use proportions to make a prediction. We know that 8 out of 100 students in the sample have traveled outside the United States. We can set up the following proportion:

8/100 = x/450

To solve for x, we can cross-multiply:

100x = 8 * 450

100x = 3600

x = 3600/100

x = 36

Therefore, we can predict that 36 students at the middle school have traveled outside the United States.