Percentilen Rank: Indicates the percentage od scores less than or equal to a particular score; is the proportion of scores in a distribution that a specific score is greater than or equal to.
Normal Curve: A graph resembling a bell-shaped curve.
Histogram: A graph that displays the frequency of data.
Normal Distribution: The frequency distribution of the normal curve.
Correlation Coefficient: The relationship (or lack of relationship) between two sets of data.
Negative Correlation: As one variable increases the other decreases, or as one variable decreases the other increases.
Positive Correlation: As one variable increase so does the other, or as one varible decreases the other increases.
R-Value: Correlation coefficient.
Zero Correlation: The Variables have nothing to do with each other, so there is no relation between the two sets of data.
Number: X
-
Mean:X
Sum: E
Standard Deviation: S
Total Population: n
Friday, April 16, 2010
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