Question

The average student loan debt for college graduates is $25,800. Suppose that that distribution is normal and that the standard deviation is $11,800. Let X = the student loan debt of a randomly selected college graduate. Round all probabilities to 4 decimal places and all dollar answers to the nearest dollar.

a. What is the distribution of X? X ~ N ( _ , _ )

b Find the probability that the college graduate has between $31,750 and $50,200 in student loan debt.

c. The middle 30% of college graduates' loan debt lies between what two numbers?
     Low: $ _
     High: $ _

Answer 1

Answer:-

(b) 0.2893

(c) Low: $23440

High: $32054