Asked by ali
a set of maths exame score mean is 70 and variance is 8. a set of english score has mean is 74 and variance is 16. for which exame whould a score of x=78 have a higher standing?
Answers
Answered by
PsyDAG
Standard deviation (SD) = square root of variance
Z = (score-mean)/SD
Whichever Z score is the highest.
Z = (score-mean)/SD
Whichever Z score is the highest.
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