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percentile rank
A score that indicates the percentage of people who scored at or below a given raw score
standard normal distribution
A normal distribution with a mean of 0 and a standard deviation of 1
z score (standard score)
the number of standard deviations an individual score is from the mean
Standardization
The process of putting different variables on the same scale to compare them. to standardize variables, you calculate the mean and standard deviation.
Understand the unique properties of the normal curve and we can use the normal distribution as a tool
Symmetrical, bell-shaped frequency polygon, normal distribution mean = median = mode
Describe what a percentile rank is
A score that indicates the percentage of people who scored at or below a given raw score
Note 
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