Shape, Center, Spread - Amphitheater Public Schools

[Pages:4]Algebra 1

Name___________________________________

Shape, Center, Spread

Date________________ Period____

Plot the data using a Stem-and-Leaf plot and describe its shape. Then, find the median and interquartile range for each data set.

1)

Age at First Job

17 17 17 22 14 21 17

17 13 12

2)

2012 Summer Olympics

Country

Medals

Australia

35

China

88

Great Britain

65

Czech Republic 10

Azerbaijan

10

Croatia

6

Country Medals

Denmark

9

Norway

4

Jamaica

12

Cuba

15

Belarus

12

3) Hits in a Round of Hacky Sack

2 4 6 8 10 12 14 Hits

4) Minutes to Run 5km Stem Leaf 19 2 1469 3 346 42

Key: 2|6 = 26

-1-

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Worksheet by Kuta Software LLC

Plot the data using a Stem-and-Leaf plot and describe its shape. Then, find the mean and sample standard deviation for each data set.

5)

Mens Heights (Inches)

72 78 68 70 67 67 59 67 68 71 66

6)

Sales Tax

State

Percent

Minnesota

6.875

Oklahoma

4.5

Kansas

6.15

Texas

6.25

Massachusetts 6.25

Florida

6

North Carolina 4.75

Virginia

4.3

Oregon

0

7)

Test Scores

40 42 44 46 48 50 52 54 Score

8) Life Expectancy by Country Stem Leaf 57 6 67899 7 469 83

Key: 6|8 = 68

-2-

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Worksheet by Kuta Software LLC

Algebra 1

Name___________________________________

Shape, Center, Spread

Date________________ Period____

Plot the data using a Stem-and-Leaf plot and describe its shape. Then, find the median and interquartile range for each data set.

1)

Age at First Job

17 17 17 22 14 21 17 17 13 12

Median = 17 and IQR = 3

2)

2012 Summer Olympics

Country

Medals

Australia

35

China

88

Great Britain

65

Czech Republic 10

Azerbaijan

10

Croatia

6

Country Medals

Denmark

9

Norway

4

Jamaica

12

Cuba

15

Belarus

12

Median = 12 and IQR = 26

3) Hits in a Round of Hacky Sack

2 4 6 8 10 12 14 Hits

Median = 6 and IQR = 10.5

4) Minutes to Run 5km Stem Leaf 19 2 1469 3 346 42

Key: 2|6 = 26

Median = 29 and IQR = 12.5

-1-

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Worksheet by Kuta Software LLC

Plot the data using a Stem-and-Leaf plot and describe its shape. Then, find the mean and sample standard deviation for each data set.

5)

Mens Heights (Inches)

72 78 68 70 67 67 59 67 68 71 66

Mean = 68.45 and s = 4.63

6)

Sales Tax

State

Percent

Minnesota

6.875

Oklahoma

4.5

Kansas

6.15

Texas

6.25

Massachusetts 6.25

Florida

6

North Carolina 4.75

Virginia

4.3

Oregon

0

Mean = 5.01 and s = 2.08

7)

Test Scores

40 42 44 46 48 50 52 54 Score

Mean = 49.6 and s = 4.74

8) Life Expectancy by Country Stem Leaf 57 6 67899 7 469 83

Key: 6|8 = 68

Mean = 70.8 and s = 7.42

-2-

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Worksheet by Kuta Software LLC

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