Question
a student scores a 40 on an exam with a mean of 50 and a standard...
a student scores a 40 on an exam with a mean of 50 and a
standard deviation of 20. calculate the z score
Homework Answers
Answer #1
Given that,
student score = x = 40
mean = 
= 50
standard deviation = 
= 20
z score = (x-)
/
z score = (40-50)/20
z score = -10/20
z score = -0.5
----------------------------------------------------------------------The End ------------------------------------------------------------------------
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