Mathematics, 23.03.2021 21:20 libbybacon7

to evaluate the integrity of underground water lines, the department of public works randomly selects 20 sites in the city to unearth and observe the water lines. At 5 of the sites, the water lines needed repair. The department of public works concludes that about one-fourth of underground water lines throughout the city need repair.

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to evaluate the integrity of underground water lines, the department of public works randomly select...