Respuesta :
Subtract Evans scores from the mean:
X = 138 - 125 = 14
Y = 138 - 137 = 1
Subtract the mean from the score because the score is higher this time:
Z = 145 - 138 = 7
Subtract Evans scores from the mean:
X = 138 - 125 = 14
Y = 138 - 137 = 1
Subtract the mean from the score because the score is higher this time:
Z = 145 - 138 = 7