Tiêu đề Cheatsheet Mid.docx ✅

CHAPTER 4: Describe data numerically 1. Measure of Center Mean Mode Median Midrange Trimmed mean Geometric mean (growth rate) 2. Measure of Variability Range Var and SD (EXCEL for SD: STDEV.S for sample and STDEV.P for population) CV MAD 3. Shape Unimodal (symmetric, right-skewed, left-skewed) Bimodal Multimodal NOTE: Symmetric: mean = mode = median Right-skewed: mean < median < mode Left-skewed: mode < median < mean 4. Standardised data z = (x – mean)/SD 5. Group data 6. Box plot 7. Skewness and Kurtosis