Examlex
Open-ended questions are typically included in a survey when the objective is to provide the maximum opportunity for the respondent to express his or her opinion.
Standard Normal
A special case of the normal distribution where the mean is 0 and the standard deviation is 1.
10th Percentile
The value below which 10% of observations in a data set fall.
Z Distribution
A normal distribution with a mean of zero and a standard deviation of one, also known as a standard normal distribution.
95th Percentile
A value below which 95% of the data points in a data set fall.
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