116 Views

Download Presentation
## Box and Whiskers Plot

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -

**Box and Whiskers Plot**By: Mr. Menjivar**09/27/11**09/27/11 Observe, Question, Comment Box-and-Whiskers Plot Box-and-Whiskers Plot Reflection Warm-Up: 16L 16R**Brain Stimulation**• Lesson 12-3 ‘Check Skills You’ll Need’ • Median is 9.5 • Median is 4.9 • Median is 52 • Median is 101**09/27/11**09/27/11 Observe, Question, Comment Box-and-Whiskers Plot Box-and-Whiskers Plot Reflection Warm-Up: Standard: 16L 16R**CA Content Standards**Statistics Data Analysis and Probability 1.1: Know various forms of display for data sets Statistics Data Analysis and Probability 1.3: Understanding the meaning of, and be able to compute, the median of a data set**09/27/11**09/27/11 Observe, Question, Comment Box-and-Whiskers Plot Box-and-Whiskers Plot Reflection Warm-Up: Standard: Objective: 16L 16R**Objective:**• To make box-and-whisker plots • To analyze data in box-and-whisker plots**09/27/11**09/27/11 Observe, Question, Comment Box-and-Whiskers Plot Box-and-Whiskers Plot Reflection Warm-Up: Standard: Objective: Vocabulary: 16L 16R**Vocabulary:Box-and-Whisker Plot**The graph displays the distribution of data items along a number line**Vocabulary:Quartiles**They divide the data into four equal parts. (Note: the median is the middle quartile)**09/27/11**09/27/11 Observe, Question, Comment Box-and-Whiskers Plot Box-and-Whiskers Plot Reflection Warm-Up: Standard: Objective: Vocabulary: Notes/Examples: 16L 16R**Box-and-Whisker Plot Summary**• Minimum means Lowest Value • Lower Quartile means median of lower half • Median • Upper Quartile means median of upper half • Maximum means Greatest Value**First**• Put the data in order from least to greatest • Find the median • Find the median of the lower half which is the lower quartile (LQ). • Find the median of the upper half which is the upper quartile (UQ).**Second**• Graph the median on the number line. • Graph the quartiles on the number line. • Graph the minimum and maximum.(biggest and smallest value.)**Third**• Draw a box around the quartiles • Draw a vertical line at the median.**Fourth**• Draw a line from the quartiles to the minimum and maximum**Example 1**• Draw a box-and-whisker plot for the distances of migration of birds. (thousands of miles) 5, 2.5, 6, 8, 9, 2, 1, 4, 6.5, 18, 7**Example 2**• The data below represent the wingspans in centimeters of captured birds. Make a box-and-whiskers plot. 61, 35, 61, 22, 33, 29, 40, 62, 21, 49, 72, 75, 28, 21, 54**Example 3**• Make a box-and-whiskers plot. 1, 1, 3, 3, 4, 5, 7, 7, 8, 9, 9.**09/27/11**09/27/11 Observe, Question, Comment Box-and-Whiskers Plot Box-and-Whiskers Plot Reflection Warm-Up: Standard: Objective: Independent Practice: Vocabulary: Notes/Examples: 16L 16R**Homework**• Student Workbook, pg. 485, #’s 1-7 [Due: Next Meeting]