Question

There are 2567 students enrolled at a small college, with 2053 of them enrolled in a sociology course. Use a calculator to find the proportion of students that separates the lowest 48% from the highest 52% in a sample of 230 students.

Answer 1

Solution: The mean and standard deviation for the given data is:

Now we can use the calculator to find the proportion of students that separates the lowest 48% from the highest 52% in a sample of 230 students, The steps are:

Press 2nd and press VARS

Scroll down invNORM

Type:

invNORM(0.48,0.7998,0.026385)

The output will be:

Therefore, the proportion of students that separates the lowest 48% from the highest 52% in a sample of 230 students is 0.7985