Examlex
Which of the following is an element of the customer interface?
Percentile Rank
A score indicating the percentage of scores in a distribution that a particular score is equal to or higher than.
Cumulative Distribution
A method of converting a frequency distribution of scores into increasing percentages as a function of the percentage of scores counted. A bar graph is often generated by placing the class interval scores along the x-axis and the cumulative percentages along the y-axis.
Frequency Polygon
A method of converting a frequency distribution of scores into a line graph. After combining scores by class interval, the class intervals are placed along the x-axis and the frequency of scores along the y-axis.
Positively Skewed Curve
A set of test scores in which the majority fall at the lower or negative end. It is said to be a positively skewed curve or distribution because a few “positive” or high-end scores have stretched or skewed the curve to the right.
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