WA1 - Robert E Goode Thomas Edison State College...

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Robert E Goode Thomas Edison State College STA-201-OL010 Mentor: Steve Stutz Date: 09/11/11 Writing Assignment #2 Exercise 2.1 (2.6) 2.6 a. First column is qualitative because it contains non-numerical values. b. Second column is quantitative continuous because conceptually the number of actions can be any positive integer. c. Third column is quantitative continuous because conceptually the number of doctors can be any positive integer. Exercise 2.2 (2.18,2.28,2.42) 2.18 a. Frequency is the number of times a certain value or class of values occurs and relative frequency is the frequency divided by the total frequency and expressed as a decimal point. b. Percentage is the number of times a certain value occurs divided by the total frequency and multiplied by 100 in order to provide a percentage. Relative frequency is different because it is the number of times a certain value occurs divided by the total frequency and is expressed as a decimal point. 2.28 Super Bowl Ratings Frequency Relative Frequency 40.0 – 42.0 10 .313 42.1 – 44.1 7 .219 44.2 – 46.2 7 .219
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6 .188 48.4 – 50.4 2 .063 2.42 A. Age (yr) Under 21 21-25 Over 25 Total Male IIIIIIIII IIIIIIIIIII II 22 Female IIIIIIIIIIII IIIIIIIIIIIII III 28 Total 21 24 5 B. Age (yr) Under 21 21-25 Over 25 Total Male 9 11 2 22 Female 12 13 3 28 Total 21 24 5 C. The row totals shows the breakdown of the class by gender. The column totals show the breakdown of the class by ages: under 21, 21-25 and over 25. D. Adding the row totals result in the number 50 and adding the column totals results in the number 50 as well. The numbers are the same because the rows and columns are separated into frequencies and once all frequencies are added they result in the total which is why the sum of the columns and rows are the same. E.
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This note was uploaded on 11/15/2011 for the course STA 201 taught by Professor Kohn during the Fall '09 term at Thomas Edison State.

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WA1 - Robert E Goode Thomas Edison State College...

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