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Mathematics, 31.07.2019 21:30 LuckyCharms988

Mrs. liang, the librarian, wants to compare the numbers of patrons who prefer e-books to paperback books. she decides to take a poll of every third adult with a child who arrives at the library for one of the four reading groups: toddlers, preschoolers, primary grades, and upper elementary. which statement is true about her method of data collection?

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