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.

1 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.

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