Answer:
Z scores for:
a) 76 = 1.33333
b) 38 = -1.83333
c) 50 = -0.83333
Step-by-step explanation:
Z score formula is:
z = (x-μ)/σ where
x is the raw score
μ is the population mean
σ is the population standard deviation.
Mean = 60
Standard deviation = 12.
a) 76
z = (x-μ)/σ
z = 76 - 60/12
z score = 1.33333
b) 38
z = (x-μ)/σ
z = 38 - 60/12
z score = -1.83333
c) 50
z = (x-μ)/σ
z = 50 - 60/12
z score = -0.83333
