Using descriptive statistics provides an interpretive statement regarding a comparison of the central tendency among the selected variables: 1) Cocaine, 2) Fentanyl and 3) Oxycodone.

Cocaine Descriptive Statistics Fentayl Oxcyodone Mean 2.047619048 Mean 2.047619048 Mean 19.71428571 Standard Error 0.405181855 Standard Error 0.405181855 Standard Error 3.693071284 Median 2 Median 2 Median 18 Mode 2 Mode 2 Mode 25 Standard Deviation 1.856776521 Standard Deviation 1.856776521 Standard Deviation 16.92377871 Sample Variance 3.447619048 Sample Variance 3.447619048 Sample Variance 286.4142857 Kurtosis 1.047243674 Kurtosis 1.047243674 Kurtosis 2.029376724 Skewness 1.011321911 Skewness 1.011321911 Skewness 1.359052234 Range 7 Range 7 Range 65 Minimum 0 Minimum 0 Minimum 1 Maximum 7 Maximum 7 Maximum 66 Sum 43 Sum 43 Sum 414 Count 21 Count 21 Count 21