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

Index

Appendix
Table - A :Area under standard normal Curve
Table - B :Values of Chi-Square
Table - C :Values of modit

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