Education > Public Libraries > Audio Materials per 1,000 Population (vs)
Education > Public Libraries > Circulation of Children's Materials (per capita)
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Strength of correlation (R squared): 0.555 (this correlation is weak)
Audio Materials per 1,000 population is found by dividing the number of audio materials by the unduplicated population of the legal service area (expressed in thousands).
The total annual circulation of all children's materials in all formats to all users, including renewals. Per capita figures expressed per 1 population.