Chapter2

Chapter2 - distributions. B. Relative Frequency...

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Chapter 2
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Frequency Distributions I Frequency Distributions for Quantitative Variables A. Ungrouped and Grouped Distribution ____________________________________________________________________________________________________________________________________ (1) (2) (3) (4) (5) (6) X j f Prop f % f Cum prop f Cum __________________________________________________________________________________________________________ 150–159 1 .03 3 .99 99 140–149 0 .00 0 .96 96 130–139 2 .06 6 .96 96 120–129 3 .09 9 .90 90 110–119 6 .18 18 .81 81 100–109 8 .24 24 .63 63 90–99 5 .15 15 .39 39 80–89 5 .15 15 .24 24 70–79 1 .03 3 .09 9 60–69 1 .03 3 .06 6 50–59 1 .03 3 .03 3 __________________________________________________________________________________________________________ n = 33 1.00 100
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1. Conventions used in constructing frequency
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Unformatted text preview: distributions. B. Relative Frequency Distribution C. Cummulative Frequency Distribution D. Frequency Distributions for Qualitative Variables ________________________________ Xj Prop f _____________________ ___________ Accidents .07 Cancer .22 Heart disease .38 Stroke .08 Other .25 ________________________________ II Graphs for Quantitative Variables A. Histogram B . Frequency Polygon C. Cumulative Polygon D. Stem-and-Leaf Display II Graphs for Qualitative Frequency Distributions A. Bar Graph B. Pie Chart Leading Causes of Death for 1986 IV Information Provided by Frequency Distributions and Graphs A. Central Tendency B. Dispersion C. Skewness D. Kurtosis...
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Chapter2 - distributions. B. Relative Frequency...

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