Exhibit 7-3 in a Local University, 40% of the Students Live in Live

question 91

Multiple Choice

Exhibit 7-3
In a local university, 40% of the students live in the dormitories. A random sample of 80 students is selected for a particular study.
-Refer to Exhibit 7-3. The standard deviation of , known as the standard error of the proportion is approximately

• A)0.5477
• B)5.477
• C)0.05477
• D)54.77

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