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MAT_1143-jan_26

# MAT_1143-jan_26 - MAT 1143 College Algebra Click to edit...

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Click to edit Master subtitle style MAT 1143 College Algebra Spring 2011 January 26, 2011

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Section 1.1 The book titles it “Describing Single Variable Data”
Variable Something that changes from person to person or situation to situation Data is information collected about a variable. We may name the variable with a letter like x, y, z We may use a more descriptive name for the variable

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Qualitative Variables Also called categorical data Use categories to describe, such as gender, race, class status (FR, SO, JR, SR) etc. Sometimes when we use numbers to describe, may be of the second type
Quantitative Variables Use a number and unit of measure to describe Height Weight Age

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Press A if Quantitative Press B if Qualitative John is a sophomore. Enter I-clicker response There are 256 sophomores. Enter I-clicker response Jane is a basketball player. Enter I-clicker response The average height on the women’s basketball team is 5 ft. 10 inches. Enter I-clicker response
The book assumes you remember how to solve simple equations. Let’s review the steps

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MAT_1143-jan_26 - MAT 1143 College Algebra Click to edit...

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