the average gpa is 4.0 with standard deviation of .2. What percent of admitted students had a gpa lower than 3.5

Question

the average gpa is 4.0 with standard deviation of .2. What percent of admitted students had a gpa lower than 3.5

Answer 1

3.5 GPA has z = (3.5-4)/0.2 = 5(-½) = -2.5.  My standard normal distribution table says that the probability for this number is 0.00621 so only 0.621 % of admitted students would have had a lower GPA ... assuming that the context of this question is admissions at some very selective institution.