Descriptive Statistics: Textual & Graphical (pdf)

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Which town picks up more trash per crew? Tons of Garbage Collected by Sanitary Engineer Teams, Week of June 8, 2007 Percentage of Work Crews Tons of Garbage Sampleton Refuseville 50-60 16 13 60-70 24 22 70-80 30 30 80-90 20 22 90-100 10 13 100 100 N=100 N=165
Cumulative Frequency Distributions • If you add up the percentages, either from the top down or bottom up, it can be very useful when making comparisons • Commonly done when reporting the result of surveys in the media • 55% are either satisfied or very satisfied
Page 1 and 2: Descriptive Statistics: Textual and
Page 3 and 4: Descriptive Statistics • Descript
Page 5 and 6: Example Number of Tons of Trash col
Page 7 and 8: Frequency Distributions • The mos
Page 9 and 10: Example, cont. • The data values
Page 11 and 12: Constructing a Frequency Distributi
Page 13 and 14: Grouped Frequency Distributions •
Page 15 and 16: Grouped Frequency Distribution •
Page 17 and 18: Percentage Distributions • Suppos
Page 19: Must convert to compare • Easiest
Page 23 and 24: In-Class Task • The fire chief of
Page 25 and 26: Solution Response Time Response Tim
Page 27 and 28: Bad Table - What’s wrong? Percept
Page 29 and 30: Simplicity vs. Detail • In making
Page 31 and 32: Feature 2 - Divides the data in a w
Page 33 and 34: Feature 5 - Clear Percentages Grade
Page 35 and 36: Graphical Representation of Tabular
Page 37 and 38: Graph Basics • A vertical axis or
Page 39 and 40: The Bar Graph • A bar graph’s b
Page 41 and 42: Bar Graph Example • Next, the tea
Page 43 and 44: The Histogram • A histogram is si
Page 45 and 46: Clinic Example • To organize thei
Page 47 and 48: Clinic Example • Next, to create
Page 49 and 50: The Frequency Polygon (Line Graph)
Page 51 and 52: Clinic Example • Next, they decid
Page 53 and 54: Pie Chart • A pie chart is a very
Page 55 and 56: Task • Using the majors frequency

Descriptive Statistics: Textual & Graphical (pdf)

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