Answer :
Final answer:
The score that represents the 90th percentile is 1.28.
Explanation:
The score that represents the 90th percentile can be found using the z-score. The critical value for a 90th percentile corresponds to a z-score of approximately 1.28. Therefore, the answer is C) 1.28.
Learn more about Percentile here:
https://brainly.com/question/34294377
#SPJ11
