605 WordsMay 12, 20133 Pages

Formulae Appendix 1
|Arithmetic Mean |[pic], [pic] |[pic] [pic] |
|Median |[pic] | |
|Mode |[pic] | |
|Standard Deviation |[pic] [pic] |[pic][pic] |
| | | |
|Coefficient of Variation |C.V. = [pic] |C.V. = [pic] |
| | | |
|Coefficient of Correlation |[pic] | |
| |[pic] | |
|Equation of Regression line |[pic] |a = [pic] |
| |[pic] | |
|Equation of Trend line |[pic] |[pic] |

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