a-student-has-final-exam-scores-in-two-courses-in-statistics-the-final-scores-ar

Question

A student has final exam scores in two courses. In statistics, the final scores are approximately normally distributed with mean $mu sub S equals 78$ and standard deviation $sigma sub S equals 9$ , and the student scored $88$ . In calculus, the final scores are approximately normally distributed with mean $mu sub C equals 82$ and standard deviation $sigma sub C equals 6$ , and the student scored $89$ . On which course did the student do relatively better under the normal model?

Accepted Answer

Performed better in Calculus; $mu sub S equals 78$ and percentile $sigma sub S equals 9$ .

Answer

Performed better in Statistics; $mu sub S equals 78$ and percentile $sigma sub S equals 9$ .

Answer

Performed equally; both $mu sub S equals 78$ -scores are $almost equals 1.14$ .

Answer

Performed better in Calculus; $mu sub S equals 78$ and percentile $sigma sub S equals 9$ .