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# Today’s Lesson - PowerPoint PPT Presentation

Today’s Lesson. Today we will learn about a new type of graph. It is called a whisker box. EQ: What are whisker Boxes?. TAKE Some Notes. Box and whisker plots

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Presentation Transcript

• Today we will learn about a new type of graph.

• It is called a whisker box

• Box and whisker plots

• A box and whisker plot is used to display information about the range, the median and the quartiles. It is usually drawn alongside a number line

FIVE POINT SUMMARY More detailed than reporting only median, but less detailed than showing a histogram or stem & leaf diagram, is the FIVE NUMBER SUMMARY

• Example

• The oldest person in Mathsminster is 90. The youngest person is 15.

• The median age of the residents is 44, the lower quartile is 25, and the upper quartile is 67.

• Represent this information with a box-and-whisker plot.

• Solution

• You have three post-its

• Write your name on each

• Use one to records your

• Height

• Age in Months

• Shoe Size

• Now that we have our data we are going to create a human whisker box.

• Lets use our height data first!

• Line up in order from least to greatest.

• Lets find the Median

• Now separate the Upper and Lower halves of the data

• Let’s find the middle of the lower half.

• This is the lower quartile

• Now we will find the middle of the upper half.

• This is the upper quartile

• 6. Time to identify the upper and lower extremes.

• Now that we have our data we are going to create a human whisker box.

• Lets use our ages in month next !

• Line up in order from least to greatest.

• Lets find the Median

• Now separate the Upper and Lower halves of the data

• Let’s find the middle of the lower half.

• This is the lower quartile

• Now we will find the middle of the upper half.

• This is the upper quartile

• 6. Time to identify the upper and lower extremes.

• C- Voice Level 1

• H- Do your best thinking. Raise hand for assistance

• A- Use the Shoe size data create a Box and Whisker Plot of the data

• M- You may choose a seat with your partner

• P- Complete the Box and Whisker plot of data. When you are down turn in paper to finished work basket. Complete practice problems in textbook. P. 82

Lesson Wrap-UP

• Pre Algebra Upgrade

• C- Voice Level 1 Talk about Math

• H- Do your best thinking. Raise your hand for assistance

• A- Complete Study Guide Questions

• M – You may choose a seat

• P- Complete Front side. Compare your answers with your partner or group.

• If you are finished work on Chapter 2 Vocabulary Review

• What did I do today in math?

• What did I learn today in math?

• Classwork/ Current Work Warm Ups

• Graded Work

• Graded test

• Completed HW

• Reference & Notes

• Vocabulary Foldables

• Honeycutt, N. (2007) Human Whisker Box Plot Retrieved November 19, 2011 from http://www.learnnc.org/lp/pages/3767?style=print.