The normalized age of a customer with Age = 57 is 0.90
Calculating the normalized age of the customer
From the question, we have the following parameters that can be used in our computation:
Mean = 41.9
Standard deviation = 16.8
Age = 57
The normalized age (z) of the customer is calculated using
z = (Age - Mean)/Standard deviation
Substitute the known values into the equation
z = (57 - 41.9)/16.8
Evaluate
z = 0.90
Hence, the normalized age of a customer with Age = 57 is 0.90
Question
A database of customers has an age field with ages ranging from 20 to 96 having mean 41.9 and standard deviation 16.8. Calculate the normalized age of a customer with Age = 57 rounded to 2 decimal places.