Twenty Students Were Randomly Selected from the Most Recent Graduating

question 230

Multiple Choice

Twenty students were randomly selected from the most recent graduating class at a Canadian university. The number of semesters they were enrolled was calculated (mean = 9.6)
7, 8, 10, 11, 8, 6, 10, 9, 9, 8, 13, 12, 8, 11, 11, 14, 8, 7, 10, 12

-What is the standard deviation?

• A)8
• B)2.162
• C)9.5
• D)4.674
• E)21.846

---

Definitions:

Gallon

A unit of volume measurement in the U.S. customary units and the British imperial systems, used primarily for measuring liquids.

Gasoline

A fuel derived from petroleum, used primarily in internal combustion engines.

Smokestack Scrubber

Pollution control devices that remove or neutralize hazardous components from industrial exhaust streams, often used in power plants.

Government Policy

Strategies and measures adopted by a government to achieve certain goals in national and international affairs.