Instruction 3-4 The Ordered Array Below Represents the Number of Cargo Manifests

question 8

Short Answer

Instruction 3-4
The ordered array below represents the number of cargo manifests approved by customs inspectors at the Port
of Brisbane in a sample of 35 days.
16,17,18,18,19,20,20,21,21,21,22,22,22,22,23,23,23,23,24,24,24,25,25,26,26,26,27,28,28,29,29,31,31,32,32
Note: For this sample,the sum of the observations is 838,the sum of the squares of the observations is 20,684,
and the sum of the squared differences between each observation and the mean is 619.89.
-Referring to Instruction 3-4,the variance of the customs data is ________.

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Definitions:

Pesticide Residue

The traces of chemicals that remain on or in crops, fruits, vegetables, and soil after pesticide application, which can pose health risks.

Clean Water Act

U.S. federal law that regulates the discharge of pollutants into the nation's surface waters, including lakes, rivers, streams, and coastal areas.

Wetlands

Areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year, including swamps, marshes, and bogs.

Community Right-to-Know Act

U.S. federal law that requires industries to report storage, use, and releases of hazardous substances to inform community safety and health.