Examlex
The following data represent the scores of 50 students on a statistics exam. The mean
score is 80.02, and the standard deviation is 11.9. What percentage of the scores lies within one standard deviation of the mean? two
standard deviations of the mean? three standard deviations of the mean? Based on these
percentages, do you believe that the distribution of scores is mound-shaped and
symmetric? Explain.
Regression
A statistical method used to model the relationship between a dependent (target) variable and one or more independent (predictor) variables.
Correlation Coefficient
A numeral measure of the strength and direction of the linear relationship between two quantitative variables.
Grade Point Average
An average score that represents the cumulative academic performance, calculated by dividing the total amount of grade points earned by the total amount of credit hours attempted.
Entrance Exam
A test designed to evaluate a prospective student's academic ability or suitability for admission to a particular school or program.
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