The distribution of SAT scores of all college-bound seniors taking the SAT in 2014 was approximately normal with mean \mu = 1497μ=1497mu, equals, 1497 and standard deviation \sigma = 322σ=322sigma, equals, 322. A certain test-retake preparation course is designed for students whose SAT scores are in the lower 25\%25%25, percent of those who take the test in a given year.