Need To Know

Chapter 4 – Displaying and Summarizing Quantitative Data
Topics  covered:
• Distributions of Quantitative Variables
• Frequency and Relative Frequency Histograms
• Stem-and-Leaf  Displays
• Dotplots
• Describing a Distribution in terms of shape, outliers, center, and spread
• Shape:  Modality, Uniformity,  Symmetry, Skewness, Unusual   
   Observations, Gaps, and Clusters
• Comparing Distributions
• Measures of Central Tendency (Mean, Median, Mode, and Midrange)
• Measures of Spread (Range, IQR, Variance, Standard Deviation)
• Five Number Summary
• Quartiles/Percentiles
• TI:  Creating a Histogram

Assignments
click the assignment for the answer key

• Day 1: W displaying data Part I
• Day 2: W describing data  Part II
• Day 3: pgs. 72 – 73 #s 6 – 14 even
• Day 4: pgs. 73 –  75 #s 16 – 28 even
• Day 5: pgs. 75 – 76 #s 30 – 42 even
• Day  6: pgs. 77 – 78 #48