exam scores, the class mean, and the class standard deviation are given below. Where did you do best? Where did you do worst? Calculate z Scores for each to decide. Your Score Mean Std Dev EXAM 1 3.80 3.25 .15 EXAM 2 3.60 3.75 .60 EXAM 3 3.10 3.20 .38 EXAM 4 2.50 2.90 .75 O You did best in Exam 2 and worst in Exam 3 O You did best in Exam 1 and worst in Exam 4 O You did best in Exam 2 and worst in Exam 4 O You did best in Exam 1 and worst in Exam 3
exam scores, the class mean, and the class standard deviation are given below. Where did you do best? Where did you do worst? Calculate z Scores for each to decide. Your Score Mean Std Dev EXAM 1 3.80 3.25 .15 EXAM 2 3.60 3.75 .60 EXAM 3 3.10 3.20 .38 EXAM 4 2.50 2.90 .75 O You did best in Exam 2 and worst in Exam 3 O You did best in Exam 1 and worst in Exam 4 O You did best in Exam 2 and worst in Exam 4 O You did best in Exam 1 and worst in Exam 3
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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21)
Transcribed Image Text:exam scores, the class mean, and the class standard deviation are given below. Where did you do
best? Where did you do worst? Calculate z scores for each to decide.
Your Score
Мean
Std Dev
EXAM 1
3.80
3.25
.15
EXAM 2
3.60
3.75
60
EXAM 3
3.10
3.20
.38
EXAM 4
2.50
2.90
.75
O You did best in Exam 2 and worst in Exam 3
O You did best in Exam 1 and worst in Exam 4
O You did best in Exam 2 and worst in Exam 4
O You did best in Exam 1 and worst in Exam 3
Expert Solution
Step 1
The z-score is a score expressed in terms of hypothetical standard normal distribution with mean 0 and standard deviation 1. The z-score corresponding to a raw score x is given by,
This score, basically, standardizes a given set of values. This standardization is helpful for competitive analysis.
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