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

question 3

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