Data analysis 57 Data Analysis 15 Failure time data analysis 11 Derivatives 7 Linear programming 7 Data collection 6 Linear equations 6 Qualitative data analysis 6 Categorical data Analysis 5 Regression Analysis 5 Statistics 5 Survival analysis (Biometry) 5 Correlation Concodence 4 Education 4 Non parametric Nematods 4 Research methodology 4 Analysis of variance 3 Correlation 3 DATA ANALYSIS 3 Data processing 3 Estimation 3 Historical research 3 Information and Documentation 3 Marketing research 3 Mathematical models 3 Mathematics and Statistics 3 Research 3 Research Methodology 3 Biometry 2 Computer data analysis 2