Doncouse_Jeremy_Week2

Doncouse_Jeremy_Week2 - Math 116 Elementary Statistics...

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Math 116: Elementary Statistics Name: Jeremy Doncouse Mountain State University, Beckley, WV 25801 ID: 92575 Chapter 2 Frequency Distribution and Graphs Section 1 Organizing Data 2.1.1. Find the class boundaries, midpoints, and widths for each class. Class Boundaries Midpoints Widths Remarks a. 12-18 11.5-18.5 15 7 b. 56-74 55.5-74.5 65 19 c. 695-705 694.5-705.5 700 11 d. 13.6-14.7 13.55-14.75 14.15 1.2 e. 2.15-3.93 2.145-3.935 3.04 1.79 2.1.2. Shown here are frequency distributions. Each is incorrectly constructed. State the reason why. Class Boundaries Frequency Widths Remarks a. 27-32 26.5-32.5 1 6 b. 33-38 33.5-38.5 0 5 c. 39-44 38.5-44.5 6 6 d. 45-49 44.5-49.5 4 5 e. 50-55 49.5-55.5 2 6 STATE REASON WHY: Class width is not the same throughout. 2.1.3. Shown here are frequency distributions. Each is incorrectly constructed. State the reason why. Class Boundaries Frequency Widths Remarks a. 5-9 4.5-9.5 1 5 b. 9-13 8.5-13.5 2 5 c. 13-17 12.5-17.5 5 5 d. 17-20 16.5-20.5 6 4 e. 20-24 19.5-24.5 3 5 STATE REASON WHY: Class limits overlap and width is not uniform. 2.1.4. Shown here are frequency distributions. Each is incorrectly constructed. State the reason why. Class Boundaries Frequency Widths Remarks a. 123-127 122.5-127.5 3 5 b. 128-132 127.5-132.5 7 5 c. 138-142 137.5-142.5 2 5 d. 143-147 142.5-147.5 19 5 STATE REASON WHY: There is a missing class. Page 1
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Math 116: Elementary Statistics Homework Assignments Chapter 2 Frequency Distribution and Graphs 2.1.5. Shown here are frequency distributions. Each is incorrectly constructed. State the reason why. Class Boundaries Frequency Widths Remarks a. 9-13 8.5-13.5 1 5 b. 14-19 13.5-19.5 6 6 c. 20-25 19.5-25.5 2 6 d. 26-28 25.5-28.5 5 3 e. 29-32 28.5-32.5 9 4 STATE REASON WHY: Class width is not the same. 2.1.6. Common Herb Heights : The heights in inches of commonly grown herbs are shown. Organize the data into frequency distribution with six classes, and think of a way in which these results would be useful. Source: The Old Farmer’s Almanac . 18
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This note was uploaded on 03/08/2011 for the course MATH 116 taught by Professor Unknown during the Fall '09 term at Mountain State.

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Doncouse_Jeremy_Week2 - Math 116 Elementary Statistics...

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