A normal distribution has a mean of 103 and a standard deviation of 2.7. 

What is the z-score of 105?

Write your answer, rounded to the nearest hundredth.


Thanks so much for your help.

Guest Apr 28, 2018

z = (x - xav)/sd.  So 


Here we have: x = 105, xav = 103, sd = 2.7


You can crunch the numbers!

Alan  Apr 28, 2018

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