In order to better decide how to market a new line of clothing, Mary is researching the demographics of the customers of a certain clothing store. She counted the number of customers who visited the store over the course of a month, and found out how many of the customers were high school students. Her collected data is in the table below.Week1234Customers2,8483,1413,8613,911Students2,0331,9372,0761,721Mary predicts that the store will see 4,238 customers next week. Approximately how many high school students should the store expect next week?
Add the four weeks of data: 7,767 students out of 13,761 customers, so about 56.4% of customers were high school students. Apply that proportion to next week’s predicted 4,238 customers: 4,238 × 0.564 ≈ 2,392. The store should expect approximately 2,392 high school students, choice B.
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