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4.1 Organizing Data Into Matrices 2.Organizing Statistical Data …it’s almost November…you should know by now your book comes with you to class EVERYDAY

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2) Organizing Statistical Data A matrix is an easy way to organize large amounts of data.

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2) Organizing Statistical Data A matrix is an easy way to organize large amounts of data. Number ofBox-office Sequels Gross Star Wars 3$1,491.4 James Bond 19$1,056.0 Jurassic Park 3 $767.4 Star Trek 9 $715.2 Batman 4 $705.3

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Example 3, p.169 a)Rewrite the matrix as a 2x3 matrix. Label the rows and columns.

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Example 3, p.169 a)Rewrite the matrix as a 2x3 matrix. Label the rows and columns. China Russia United States production424671 consumption432898

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Example 3, p.169 b)How could you modify your matrix to include data from other countries?

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Example 3, p.169 b)How could you modify your matrix to include data from other countries? Add a new column for each additional country.

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Example 4, p.170 a)Write a matrix M to represent the information from the table below.

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Example 4, p.170 a)Write a matrix M to represent the information from the table below. FloorPommel StillVault Parallel Horizontal Exercise Horse Rings Bars Bars Paul Hamm9.7259.7009.5879.1379.8379.837 Dae Eun Kim9.6509.5379.7129.4129.7759.725 Tae-Young Yang9.5129.6509.7259.7009.7129.475

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Example 4, p.170 b)Identify element m 15. What does this element represent?

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Example 4, p.170 b)Identify element m 15. What does this element represent? FloorPommel StillVault Parallel Horizontal Exercise Horse Rings Bars Bars Paul Hamm9.7259.7009.5879.1379.8379.837 Dae Eun Kim9.6509.5379.7129.4129.7759.725 Tae-Young Yang9.5129.6509.7259.7009.7129.475

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Example 4, p.170 b)Identify element m 15. What does this element represent? FloorPommel StillVault Parallel Horizontal Exercise Horse Rings Bars Bars Paul Hamm9.7259.7009.5879.1379.8379.837 Dae Eun Kim9.6509.5379.7129.4129.7759.725 Tae-Young Yang9.5129.6509.7259.7009.7129.475

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Example 4, p.170 b)Identify element m 15. What does this element represent? FloorPommel StillVault Parallel Horizontal Exercise Horse Rings Bars Bars Paul Hamm9.7259.7009.5879.1379.8379.837 Dae Eun Kim9.6509.5379.7129.4129.7759.725 Tae-Young Yang9.5129.6509.7259.7009.7129.475 9.837; Paul Hamm’s score on the parallel bars.

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Homework p.171 #12-18, 26, 28 QUIZ – Friday October 30 Section 4.1 …writing dimensions of a matrix …identifying matrix elements …creating matrices from statistical data

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Homework Solutions 14b)24; percent of suburban libraries offering parenting skills programs 15)3.3; number of DVD’s, in millions, shipped in 2000 16)881.9; number of CD’s, in millions, shipped in 2001 18) The student identified data in column 3, row 2 when he or she should have looked at row 3, column 2.

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Class Opener:. Identifying Matrices Student Check:

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