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7. Among freshmen at a certain university, scores on the Math SAT followed the normal curve, with an average of 550 and an SD of 100. Fill in the blanks; explain briefly. (a) A student who scored 400 on the Math SAT was at the th per- centile of the score distribution. (b) To be at the 75th percentile of the distribution, a student needed a score points on the Math SAT. of about

7. Among freshmen at a certain university, scores on the Math SAT followed the normal curve, with an average of 550 and an SD of 100. Fill in the blanks; explain briefly. (a) A student who scored 400 on the Math SAT was at the th per- centile of the score distribution. (b) To be at the 75th percentile of the distribution, a student needed a score points on the Math SAT. of about

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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REVIEW EXERCISES 95 6. Among applicants to one law school, the average LSAT score was about 169, the SD was about 9, and the highest score was 178. Did the LSAT scores follow the normal curve? 7. Among freshmen at a certain university, scores on the Math SAT followed the normal curve, with an average of 550 and an SD of 100. Fill in the blanks; explain briefly. (a) A student who scored 400 on the Math SAT was at the th per- centile of the score distribution. (b) To be at the 75th percentile of the distribution, a student needed a score points on the Math SAT. of about 8. True or false, and explain briefly- (a) If you add 7 to each entry on a list, that adds 7 to the average. (b) If you add 7 to each entry on a list, that adds 7 to the SD. (c) If you double each entry on a list, that doubles the average. (d) If you double each entry on a list, that doubles the SD.
Transcribed Image Text:REVIEW EXERCISES 95 6. Among applicants to one law school, the average LSAT score was about 169, the SD was about 9, and the highest score was 178. Did the LSAT scores follow the normal curve? 7. Among freshmen at a certain university, scores on the Math SAT followed the normal curve, with an average of 550 and an SD of 100. Fill in the blanks; explain briefly. (a) A student who scored 400 on the Math SAT was at the th per- centile of the score distribution. (b) To be at the 75th percentile of the distribution, a student needed a score points on the Math SAT. of about 8. True or false, and explain briefly- (a) If you add 7 to each entry on a list, that adds 7 to the average. (b) If you add 7 to each entry on a list, that adds 7 to the SD. (c) If you double each entry on a list, that doubles the average. (d) If you double each entry on a list, that doubles the SD.
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