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Lady bird [3.3K]
3 years ago
9

Which is relatively​ better: a score of 79on a psychology test or a score of 48on an economics​ test? scores on the psychology t

est 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?
Mathematics
1 answer:
igomit [66]3 years ago
8 0
Psychology 

<span>z =(48-87)/14 </span>

<span>z = -2.796 </span>
<span>Economics </span>

<span>z =(52-53)/8 </span>

<span>z = -0.125 </span>

<span>The score of Economics is better.</span>
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