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Grouped Data |
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A set of values belonging to different groups. |
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Histogram |
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Graphic display of the frequency of a phenomenon. |
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Independent Variable |
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A variable that causes or influences another variable. |
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Independent Event |
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An event, whose occurrence or non-occurence, doesn't effect the occurrence of the other event in any way. |
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Inference |
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Conclusion about a population parameter based upon the analysis of a sample statistic (sample being drawn from same population). |
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Inter-Quartile Range |
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It is the difference between the upper (Q3) and the lower quartile (Q1) inclusive. |
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Interval |
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A scale, which uses numbers to rank order. |
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Intercept |
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The value of the ordinate (Y) at which a straight line crosses the vertical axis. |
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Joint Occurrence |
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An occurrence in which two outcomes happen simultaneously (ABor A Ç B). |
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Kurtosis |
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It is the degree of flatness or peakedness, in the region of the mode of frequency curve. |
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Large sample |
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A sample whose size is above 30. |
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Least squares |
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Any line or curve fitting model, that minimizes the squared distance of the data points to the line. |
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Leptokurtic |
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If the curve is more peaked than the normal curve it is called Leptokurtic. |
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Lower Quartile (Q1) |
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It is the size of the 25th observation when the data is arranged in ascending or descending order or the 25th percentile of a set of measures. |
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Lines of Regression |
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In the scatter plot, if the variables are highly correlated then the dots lie in a narrow strip. If the strip is nearly a straight line then it is called a line of regression. |
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Level of Significance |
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The probability level below which we reject the hypothesis. |
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Mean |
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It is the some of the measures in a distribution by their number. |
