brm biostatistics b pharmacy plagiarism quasi experimental design true experimental design pre- experimental design design techniques phase 3 studies phase 2 studies phase 1 studies need for research research friedman test kruskal- wallis test mann whitney u test signed rank test rank sum test wilcoxon non parametric test spearson's rank coefficient karl pearson coefficient method of studying correlation non- linear correlation linear correlation multiple correlation partial correlation simple correlation negative correlation positive correlation types of correlation correlation step deviation for s.d standard deviation calculation methods for quartile range methods for range calculation absolute dispersion relative dispersion standard deviation quartile range range method of dispersion dispersion relationship of different mean merits demerits of mean b pharm 4th year biostatistic harmonic mean geometric mean arithmetic mean types of mean mean ungrouped data grouped data calculation of mode mode research methodology biostatics pharmaceutical education median
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