a survey of 20 colleges found that seniors graduated with an average $12000 in debt from student loans. The debt was normally distributed with a standard deviation of $3200. Find the probability that a senior graduated owing more than $16000.

Question

a survey of 20 colleges found that seniors graduated with an average $12000 in debt from student loans.  The debt was normally distributed with a standard deviation of $3200.  Find the probability that a senior graduated owing more than $16000.

Scott · Answer

16000 is 4000 above the average 4000/3200 = 1.2 sd use a z-score table to find the probability