Filetype Power Point PPTX | Posted on 02 Sep 2022 | 3 years ago
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198x Filetype PPTX File size 0.52 MB Source: www2.stat.duke.edu
Announcements
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Textbooks are here!
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My office hours: (Old Chemistry 216)
– Wednesday 3-5 pm
– Friday 1-3pm
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Lecture slides, assignments, labs, etc. will be posted at
http://stat.duke.edu/courses/Spring12/sta101.2/
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Complete lecture slides to be posted after each class
The Big Picture
Population Sampling
Sample
Statistical
Inference Exploratory
Data Analysis
Class Survey Data
Data from both STAT 101 classes and STAT 10
Data
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In order to make sense of this data, we need ways
to summarize and visualize it
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Summarizing and visualizing variables and
relationships between two variables is often known
as exploratory data analysis (also known as
descriptive statistics)
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Type of summary statistics and visualization
methods depend on the type of variable(s) being
analyzed (categorical or quantitative)
One Categorical Variable
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Display the number or proportion of cases that
fall in each category
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