Question

Which is relatively​ better: a score of 79on a psychology test or a score of 48on an economics​ test? scores on the psychology test have a mean of 85and a standard deviation of 5.scores on the economics test have a mean of 52and a standard deviation of 3?

Answer 1

Psychology 

z =(48-87)/14 

z = -2.796 
Economics 

z =(52-53)/8 

z = -0.125 

The score of Economics is better.