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Daniel Math Academy · Grade 8 Math

Unit Review: Box plots & outliers

Grade 8 · 3 skills · ★★☆ Medium

Name
 
Date
 
Score/ 12

N.1Use the box plot to answer each question.

  1. 1
    Heights of Plants (cm)6101418222630
    Interquartile range = 
  2. 2
    Points Scored per Game1216202428323640
    Interquartile range = 
  3. 3
    Points Scored per Game5152535455565
    Upper quartile = 
  4. 4
    Daily High Temperatures (°F)2025303540455055606570
    Interquartile range = 

N.2Use the box plots to answer each question.

  1. 5
    Heights of Plants (cm)MorningAfternoon68101214161820
    Greater IQR: 
  2. 6
    Points Scored per GameMorningAfternoon1620242832364044
    Greater IQR: 
Daniel Math Academy · danielmath.comWorksheet #zhrh3rj · Page 1 / 3
Daniel Math Academy · Grade 8 Math
Unit Review: Box plots & outliers

N.2Use the box plots to answer each question. (continued)

  1. 7
    Points Scored per GameStore XStore Y481216202428
    IQRs differ by: 
  2. 8
    Points Scored per GameTeam 1Team 21416182022242628303234
    Greater IQR: 

N.3Answer each question.

  1. 9
    . Which value is the outlier? What is the mean with it and without it?
  2. 10
    . Which value is the outlier? What is the mean with it and without it?
  3. 11
    . Which value is the outlier? What is the mean with it and without it?
  4. 12
    . Which value is the outlier? What is the mean with it and without it?
Daniel Math Academy · danielmath.comWorksheet #zhrh3rj · Page 2 / 3
Daniel Math Academy · Grade 8 Math

Answer Key

Unit Review: Box plots & outliers · ★★☆ Medium

N.1Read Box Plots

  1. 1
  2. 2
  3. 3
  4. 4

N.2Compare Box Plots

  1. 5Morning
  2. 6Morning
  3. 7
  4. 8Team 1

N.3Outliers and Their Effect

  1. 9Outlier ; mean with it, without
  2. 10Outlier ; mean with it, without
  3. 11Outlier ; mean with it, without
  4. 12Outlier ; mean with it, without
Daniel Math Academy · danielmath.comWorksheet #zhrh3rj · Answer Key · Page 3 / 3