Learning Objectives In this chapter,you will learn: >To describe the properties of central tendency, variation and shape in numerical data To calculate descriptive summary measures for a population To construct and interpret a box-and-whisker plot >To describe the covariance and coefficient of correlation as a measure of the strength of the relationship between two numerical variables Statistics for Managers Using Microsoft Excel Chap 3-2 Statistics for Managers Using Microsoft Excel Chap 3-2 Learning Objectives In this chapter, you will learn:  To describe the properties of central tendency, variation and shape in numerical data  To calculate descriptive summary measures for a population  To construct and interpret a box-and-whisker plot  To describe the covariance and coefficient of correlation as a measure of the strength of the relationship between two numerical variables