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

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