This document contains summaries from multiple students on topics related to statistics including skewness, measures of skewness, moments, measures of moments, and kurtosis. It includes definitions of skewness as asymmetry in a statistical distribution and examples of positively and negatively skewed distributions. It also defines moments as measures of forces that produce rotation and provides formulas for calculating moments from grouped and ungrouped data. Kurtosis is defined as the degree of peakedness of a frequency curve relative to the normal curve, and types of kurtosis are described as leptokurtic, mesokurtic, and platykurtic. Measures of kurtosis such as β2 and γ2 are also presented.