Which statement identifies a mistake Anna made if any

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Can you me find the missing length. i attached an image.