Principal Phillipi used a random sample of 20 student records to determine how far, in miles, students live from the school. The results are shown below.3, 4, 5, 3, 4,5, 6, 5, 4, 3,2, 3, 4, 5, 6,4, 8, 4, 3, 2 What is the mean distance that his students live from the school, rounded to the nearest tenth?
Add the 20 distances to get 83 miles, then divide by 20 students: 83 ÷ 20 = 4.15 miles. Rounded to the nearest tenth, the mean is 4.2 miles, choice B.
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