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Presentation transcript:

SEE SOMETHING, SAY SOMETHING ACT RESPONSIBLY & SUPPORT the COMMUNITY. Be on Time Wear ID Chromebook Ready SEE SOMETHING, SAY SOMETHING

We will learn how to Comparing Box Plots1. Learning Objective LEARNING OBJECTIVE Definition 1 In statistics, a boxplot is a method for graphically displaying groups of numerical data through their quartiles. What are we going to learn today? What is a Boxplot?_______. CFU

Activate Prior Knowledge The numbers of runs Jane’s baseball team scored in 9 games are: 0, 2, 3, 2, 4, 11, 3, 4, 3. Construct a boxplots to shows the data graphically. The numbers of field goals James’ football team scored in 12 games are; 3, 2, 5, 3, 5, 2, 1, 0, 5, 4, 4, 2. Construct a boxplots to shows the data graphically. 0, 2, 2, 3, 3, 3, 4, 4, 11 0, 1, 2, 2, 2, 3, 3, 4, 4, 5, 5, 5 Remember the Concept A boxplot can be used to show how the values in a data set are distributed. Make the Connection Students, you already know how to Construct Boxplots. Today, we will learn how to compare two boxplots.

*Note: the English word quartile has a Spanish cognate “cuartil.” Skill Development You can plot two boxplots above a “SAME” single number line to compare two data sets. Remember, when creating box plots and comparing two sets of data, you must find the first quartile, third quartile, and interquartile range. *Note: the English word quartile has a Spanish cognate “cuartil.” CFU: Pair-Share A: What are the 5 Values that makeup BoxPlot? B: How much data is in each interval & how do you find IQR Value?

Skill Development 2013: 420, 409, 368, 353, 291, 268, 263, 253, 239, 235 2012: 623, 448, 408, 304, 303, 392, 262, 237, 219, 216 A: Sort the list and find the five values B: Sort the list and find the five values

Recall Make the Boxplots Skill Development Recall Remember, when comparing boxplots, both boxplots MUST be drawn using the same number line. Make the Boxplots

Skill Development/Guided Practice A: Sort the list and find the five values B: Sort the list and find the five values 25.4 29 The medians are close, but the median for 2013 is slightly greater than that of 2012. The ranges are close, but the interquartile range for 2013 is much greater than that of 2012. 26 31 36.75 38.5 44 57 69 73 Make the Boxplots

The median for 2013 is much greater than the median for 2012. Skill Development/Guided Practice The ages of the 10 richest people in the world for 2012 and 2013 (in years) are: 2012: 72, 56, 81, 63, 75, 67, 55, 64, 83, 92 2013: 72, 57, 76, 82, 68, 77, 72, 84, 90, 63 A: Sort the list and find the five values B: Sort the list and find the five values The median for 2013 is much greater than the median for 2012. Both the range and interquartile range for 2013 are less than those of 2012, so the ages were more varied in 2012.

Independent practice

Independent practice

What did you learn today about how to Compare Box Plots. Common Core What did you learn today about how to Compare Box Plots. SUMMARY CLOSURE Word Bank Dot Plot IQR Whisker Quartiles Median 5-number summary Today, I learned how to _________________________________________________________________________________.