Weather in Februray 2.基本概念和知识点 Frequency distribution for qualitative data,pie charts,bar charts 3.问题与应用 (1)Summarize qualitative data by forming frequency distribution (2)Construct and interpret pie charts and bar charts Section2.Summarizing Quantitative Data 1.主要内容 Guidelines for constructing a frequency distribution Visualizing frequency distributions for quantitative data:histograms,polygons,ogives 1.2 1 01 200 40 600 800 Stem-and-Leaf Diagrams 6 6 2.基本概念和知识点 Frequency distribution for qualitative data, pie charts, bar charts 3.问题与应用 (1) Summarize qualitative data by forming frequency distribution (2) Construct and interpret pie charts and bar charts Section2. Summarizing Quantitative Data 1.主要内容 Guidelines for constructing a frequency distribution Visualizing frequency distributions for quantitative data: histograms, polygons, ogives Stem-and-Leaf Diagrams