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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
18 Nov 2021

Given information

Step-by-step explanation

Step 1.

In order to compare the student’s performance when we have different types of scores under consideration the z-score can be used.

Z-score tells how many standard deviation a particular value is above or below the mean. 

Formula used:

 Where,  is any data value

                            is the population mean

                            is the population standard deviation

 

                              

 

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