On this page, most links lead directly to applets. If the link leads to discussion instead of an applet, then the text says discussion. Most applets begin with some values in so that you see what the applet does right away. Some of the applets allow you to enter your own data. (By copy and paste mostly, I expect. Don't spend time typing in data here - there are for quick overviews of concepts.)
If an applet is not completely self-explanatory, or if you want something with more depth, click on the Instructions/Discussion link at the bottom of the applet. There are MANY more applets in this collection than are linked to from this top page. You'll have to find those extra applets from the Discussion pages.
This is a work in progress and not all the topics identified have applets or illustrations available now. Your textbook has many illustrations as well, so we felt it was useful to make this Table of Contents address many things that it is helpful to visualize rather than limit it to those for which we have completed applets.
For the material toward the end of this table, we don't have applets yet. However the tables are organized to help you see the similarities between the techniques. For those chapters, much of what you should visualize is the table itself and what it is telling you about how to understand the new material in terms of previous material you have learned.
Basic Practice of Statistics 7th edition |
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Topics and relationships to visualize |
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Data |
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Chapter1 |
Frequency graphs of one-variable data
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Chapter 1 |
Other graphs of one-variable data
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Chapter 2 |
Summary statistics of one-variable data |
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Chapter 2 |
Comparative graphs of one-variable data |
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Chapter 3 |
Graphs of population data
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Chapter 3 and 20, 21 |
Samples from populations
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histograms
of
samples (You can't enter population data here, but you can choose from three different populations.) |
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Chapters 4, 5 and 26 |
Relationships between two quantitative variables
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Chapters 6 and 25 |
Relationships between two (or three) categorical
variables |
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Chapter 9 |
Experimental Design
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Chapter 12 |
Probability
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Probabillity as a long-term relative frequency (You can't enter data here - you can enter the probability of an event and the simulate MANY occurances of the event to see the pattern of the relative frequency.) |
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Chapter 15 and 22
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Sampling Distributions of various statistics
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Chapter 16 and 20 Chapter 22 |
Estimation of one parameter (mean or proportion) with confidence intervals
Standard Error calculators (including SE for one proportion) |
Put in sample mean, etc. |
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Chapter 17, 20, and 22
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Hypothesis testing of a claim on one variable (mean or
proportion)
Standard Error calculators (including
SE for one proportion) |
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Chapters 21 and 23 |
Inference on difference of two parameters (means or proportions)Standard Error calculators (including
SE for one proportion, difference of two means, difference
of two proportions) Matched Pairs. The statistical
method is to find the difference for each pair, and then
analyze the set of differences as a one-variable problem.
This applet takes the matched pairs data as
input and finds the entire set of differences and
the mean and standard deviation of those
differences.
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Chapter 25 and 27. Extension of ideas from Chapters 23 and 21. |
Inference on comparing multiple (two or more) parameters (proportions or means)
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Chapter 26. Uses concepts and techniques from Chapters 4 and 5 |
Inference on relationships between two (or more) quantitative variables (regression)This table shows what is covered in this chapter.
Material covered in Chapters 4 and
5
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Information about entering data for our applets
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