# 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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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

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

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

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

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

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

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.

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

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

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

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

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

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.

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

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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