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# 1 01a Box Whiskers

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### Transcript

• 1. Algebra 1.1 Bitsy Griffin
• 2.
• How do I construct box & whisker plots?
Algebra 1.1 Bitsy Griffin
• 3.
• Minimum (min)
• Maximum (max)
• Median (med AND Q2)
• Quartiles (Q1, Q3)
• Interquartile Range
• Range
Algebra 1.1 Bitsy Griffin
• 4.
• Define for assignment
• In back of text book or lesson
• Bar Graph
• Line Plot
• Line Graph
Algebra 1.1 Bitsy Griffin
• 5.
• Definition
• Picture of how data is clustered without showing every value
• Information needed
• Minimum, Maximum AND Quartiles
• Use your calculator to find these
Algebra 1.1 Bitsy Griffin
• 6.
• Draw a number line with EQUAL intervals & evenly spaced.
• Range on the number line should be a little larger than minimum and maximum.
Algebra 1.1 Bitsy Griffin
• 7.
• Leave space above the number line for the box.
• Above the line, use points to mark the min, Q1, med/Q2, Q3, and max.
• Draw the box and whiskers using the points as a guide.
Algebra 1.1 Bitsy Griffin
• 8.
• Weekly hours spent on homework
• Our data:
• Min 6 , Max 16, Med 10, Q1 7.5, Q3 12
• What range and intervals should be used on the number line?
Algebra 1.1 Bitsy Griffin
• 9.
• Mark min, max, med, Q1, Q3
• Draw Box & Whisker
Algebra 1.1 Bitsy Griffin
• 10.
• What’s the minimum?
• What is the maximum?
• What’s the range?
• What is the interquartile range?
Algebra 1.1 Bitsy Griffin
• 11.
• 45, 37, 33, 16, 14, 11, 12, 8, 7, 13, 3, 5, 6, 3, 6, 4
Algebra 1.1 Bitsy Griffin
• 12.
• 15.7, 18, 10.6, 13.9, 14, 23.5, 10.1, 11.9, 12.3, 26.6, 18.2, 12.8, 16.6, 11.6, 15.7
Algebra 1.1 Bitsy Griffin
• 13.
• How do I construct box & whisker plots?
Algebra 1.1 Bitsy Griffin