216x Filetype PPTX File size 2.25 MB Source: www.longbranch.k12.nj.us
Statistical Analysis: The Basics on Distributions PART ONE Analysis: The Basics on Distributions Frequency Distribution A table or graph that shows how often different numbers or scores appear in a particular set of scores Histogram A bar graph that shows a frequency distribution Polygon A line graph that shows a frequency distribution Analysis: The Basics on Distributions Glasse # of s of People Glasses of Water H2O 7 1 0 6 2 1 5 Histogram 4 3 2 Glasses of Water 3 4 4 2 5 5 7 6 1 6 6 5 0 7 5 4 1 2 3 4 5 6 7 8 910 3 8 4 2 Polygon 9 2 1 10 1 0 Frequency 1 2 3 4 5 6 7 8 910 Distribution Analysis: The Basics on Distributions The Normal (Bell) Curve A special frequency polygon in which the scores are symmetrically distributed around the mean Mean, median and mode Used as a guideline for intelligence, height, weight, etc.
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