Properties of Distribution 1. Skewness p Refer to shape of distribution, either symmetry or assymetry
2. Kurtosis p Refer to the flatness or peakness of a distribution
Pharmaceutical Biostatistics: Descriptive Statistics
Skewness
Positively skewed distribution
Negatively skewed distribution
Tail pointing to the larger value
Tail pointing to the smaller value
Mean > median > mode
Mode > Median > Mean
Pharmaceutical Biostatistics: Descriptive Statistics
Kurtosis
Leptokurtic distribution
Platykurtic distribution à A distribution with low peak à Flatter than the normal curve
à A distribution with a high peak à More peaked than the normal curve
Pharmaceutical Biostatistics: Descriptive Statistics