As been found that scores on the Writing portion of the SAT (Scholastic Aptitude Test) exam are normally distributed with mean 484 and standard deviation 115. Use the normal distribution to answer the following questions. (a) What is the estimated percentile for a student who scores 450 on Writing?

Round your answer to the nearest integer.

The estimated percentile for 450 is

(b) What is the approximate score for a student who is at the
th
percentile for Writing?

Round your answer to the nearest integer.

The
90th percentile is the score of