In: Math
The distribution of certain test scores is a nonstandard normal distribution with a mean of 50 and a standard deviation of 6. What are the values of the mean and standard deviation after all test scores have been standardized by converting them to z-scores using z = (x - µ) / σ ?
Select one:
a. The mean is 1 and the standard deviation is 0.
b. The mean is 0 and the standard deviation is 1.
c. The mean is 100 and the standard deviation of 10.
d. The mean is 10 and the standard deviation is 100.