Joey took examinations in Algebra, Physics, Chemistry and English and scored 84, 79, 88 and 93 respectively. If the mean grade in algebra is 80, in physics 75, in chemistry 85 and in English 90 and if the standard deviations are 8, 6, 4 and 5 in Algebra, Physics, Chemistry and English respectively, in which subject was his relative standing higher? Hint: Calculate the standard grade corresponding to each subject and compare.
Joey took examinations in Algebra, Physics, Chemistry and English and scored 84, 79, 88 and 93 respectively. If the mean grade in algebra is 80, in physics 75, in chemistry 85 and in English 90 and if the standard deviations are 8, 6, 4 and 5 in Algebra, Physics, Chemistry and English respectively, in which subject was his relative standing higher? Hint: Calculate the standard grade corresponding to each subject and compare.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Joey took examinations in Algebra, Physics, Chemistry and English and scored 84, 79, 88 and 93 respectively. If the mean grade in algebra is 80, in physics 75, in chemistry 85 and in English 90 and if the standard deviations are 8, 6, 4 and 5 in Algebra, Physics, Chemistry and English respectively, in which subject was his relative standing higher? Hint: Calculate the standard grade corresponding to each subject and compare.
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