SAT scores are approximately normal with mean 500 and a standard
devotion 100. Scores of 800 or higher are reported as 800, so a perfect
paper is not required to score 800 on the SAT. What percent of students
who take the SAT score 800?
The answer to this question shall be: SAT scores of 800+ correspond to
z>3; this is 0.15%.
Please help me understand this. I dont understand how I get that z>3???
and that it is 0.15%?
Thanks for help
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