how do you determine which team played more consistently over the last six years?
TRANSCRIPT
![Page 1: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/1.jpg)
How do you determine which team played more consistently over the last six years?
![Page 2: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/2.jpg)
In this lesson you will learn how to informally compare two populations by using the range
and interquartile range.
![Page 3: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/3.jpg)
Let’s ReviewLet’s Review
Range : The difference between the greatest number and lowest number
l l l l l l l l l l ll l l l l l l l l l l60 64 68 72 76 80 84 90 94 98 102 106 110 114 118 122 126 130 134 138 142
Range
Range= 114 – 66=48
![Page 4: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/4.jpg)
Let’s ReviewLet’s Review
Interquartile Range (IQR): The range of the middle of the data. The difference between the upper quartile and lower quartile.
l l l l l l l l l l ll l l l l l l l l l l60 64 68 72 76 80 84 90 94 98 102 106 110 114 118 122 126 130 134 138 142
IQR
IQR = 94 – 76 = 18
![Page 5: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/5.jpg)
Let’s ReviewA Common Mistake
Finding the lower (Q1) and upper (Q3) quartiles
16 18 19 19 20 20 23 28 30
Q2=20Q1=18.5 Q3=25.5
![Page 6: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/6.jpg)
Let’s ReviewCore Lesson
Measures of VariabilityRange, Interquartile Range, Median Absolute Deviation
Range – influenced by outliersIQR – not influenced by outliers
![Page 7: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/7.jpg)
Let’s ReviewCore Lesson
l l l l l l l l l l l31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
l l l l l l l l l l l
Flamingos
l l l l l l l l l l l31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
l l l l l l l l l l l
Cougars
Number of Team Wins (6 seasons)
Range = 51-31=20 IQR = 47-31=16
Range = 42-36=6 IQR = 42-39=3
![Page 8: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/8.jpg)
Let’s ReviewCore Lesson
l l l l l l l l l l l60 64 68 72 76 80 84 90 94 98 102 106 110 114 118 122 126 130 134 138 142
l l l l l l l l l l l
NFC
l l l l l l l l l l l60 64 68 72 76 80 84 90 94 98 102 106 110 114 118 122 126 130 134 138 142
l l l l l l l l l l lAFC
Number of Team Penalties (NFL)
Range = 138-60=78 IQR = 113-68=45
Range = 114-66=48 IQR = 94-76=18
![Page 9: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/9.jpg)
In this lesson you have learned how to informally compare two populations by using the range
and interquartile range.
![Page 10: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/10.jpg)
Let’s ReviewGuided Practice
Compare the range and IQR of the medal count at the Summer Olympics for 1992 – 2008.
l l l l l l l l l l l l
l l l l l l l l l l l l60 65 70 75 80 85 90 95 100 105 110 115
60 65 70 75 80 85 90 95 100 105 110 115
USA
Russia
![Page 11: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/11.jpg)
Let’s ReviewExtension Activities
Go to www.databaseOlympics.com, choose a range of years, and pick 2 countries. Find the medal count for the Winter Olympics for each of those countries. Use the range and IQR to compare the medal count for each country.
![Page 12: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/12.jpg)
Let’s ReviewExtension Activities
Measure the arm span and height of 7 classmates. Compare the two by using the range and IQR of each measurement.
![Page 13: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/13.jpg)
Let’s ReviewQuick Quiz
Compare the range and IQR to determine which week the fitness club exercised the least.
l l l l l l l l l l l l l
l l l l l l l l l l l l l30 35 40 45 50 55 60 65 70 75 80 85 90
30 35 40 45 50 55 60 65 70 75 80 85 90
Week 1
Week 2
![Page 14: How do you determine which team played more consistently over the last six years?](https://reader035.vdocuments.mx/reader035/viewer/2022062221/56649f2b5503460f94c45c10/html5/thumbnails/14.jpg)
Let’s ReviewQuick Quiz
Use the range and IQR to determine who trained more for the marathon last week.
l l l l l l l l l l l l
l l l l l l l l l l l l 1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11 12
Lucy
Debra