Homework-Ch-01-key

Homework-Ch-01-key - Chapter 1 Homework key [Over 24...

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1 Chapter 1 Homework key 08/23/11 [Over 24 points] 101. [Chapter 1; 24 points] (Definitions) Use the following recent survey data to answer questions (a) through (h): A B C -- ------------- -- Bob 72 Pan Am A Alice 36 American D Peter 66 American G Aisha 58 Southwest A Janet 88 United B Where: A = respondent’s height in inches B = his or her favorite airline to fly C = their letter-grade GPA a) [2 p.] What do we call the line of data that pertains to Alice? Full credit: an observation . Partial credit: an entity. (Alice is the entity, the data are the observation.) b) [2 p.] What do we call the column containing everyone’s GPA? Full credit: a variable . Partial credit: a characteristic. c) [4 p.] Define the difference between Qualitative and Quantitative data Qualitative data assign the entity in question to a category you drive a Yugo, you drink Perrier. Quantitative data are numerical (integers or real numbers), which are
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Homework-Ch-01-key - Chapter 1 Homework key [Over 24...

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