contestada

If a student scored 82 points on a test where the mean score was 78.2 and the standard deviation was 6.7. the student's z score is .

Respuesta :

Z-score formula is z=(x-m) / sd
x = data value
m= mean
sd =  standard deviation

z= (82-78.2) / 6.7
  =0.567
  =0.57

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