Final answer:
The 50-34-14 rule refers to the percentage of scores between the mean and the z-scores.
Step-by-step explanation:
The 50-34-14 rule refers to the percentage of scores between the mean and the z-scores.
Specifically, it states that about 68% of scores lie between one standard deviation below and one standard deviation above the mean, about 95% of scores lie between two standard deviations below and two standard deviations above the mean, and about 99.7% of scores lie between three standard deviations below and three standard deviations above the mean.