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Mathematics, 04.11.2020 18:30 cedricevans41p4j3kx

A poll agency reports that 27 % of teenagers aged 12-17 own smartphones. A random sample of 85 teenagers is drawn. Round your answers to at least four decimal places as needed.

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A poll agency reports that 27 % of teenagers aged 12-17 own smartphones. A random sample of 85 teena...
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