Homework 01.7

Last updated over 3 years ago
1 question
At Hogwarts School of	Witchcraft and Wizardry, Professor	Snape was concerned about grade inflation,  and suggested that the school should issue standardized grades (or z-scores), in addition to the regular  grades. How might this work? Harry was in four classes, each with 20 students. Harry’s score, the class  mean, and the class standard deviation are given below. Compute his standardized grade in each class.  If we judged by standardized grades, where did he do best?  Round your answer to 2 decimal places.



Care of Magical Creatures z-score: _______ 
Defense against the Dark Arts z-score: _______ 
Transfiguration z-score: _______ 
Potions z-score: _______ 

What was Harry's Best class: _______ 