In a population survey of patients in a rehabilitation hospital, the mean length of stay in the hospital was 12.0 weeks with a standard deviation equal to 1.0 week. The distribution was normally distributed. What is the percentile rank for each of the following z scores?Enter the percentile rank to the right of each z score. Assume a normal distribution.

a) 1.23_____

b) 0.89 ______

c) -0.46 _____

d) -1.00______