Some Colleges Now Allow Students to Rent Textbooks for a Semester

Multiple Choice

Some colleges now allow students to rent textbooks for a semester. Suppose that 73% of all students enrolled at a particular college would rent textbooks if that option were available to them. If the campus bookstore uses a random sample of size 40 to estimate the proportion of students at the college who would rent textbooks, then what is the standard deviation of the sampling distribution of ? ​

A) 0.079
B) 0.177
C) 0.070
D) 0.031
E) 0.197