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The postings on this blog are my own (except as noted) and do not necessarily represent the positions, strategies or opinions of my current, past, and future employers, cats and other family members, relatives, Facebook friends, real friends, Charlie Sheen, people who sit next to me on public transportation, or myself when I’m in my right mind.-
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# Tag Archives: cats

## WHAT ARE THE ODDS?

Probability is the core of statistics. You hear the phrase “what’s the probability of …” all the time in statistics. You also hear that phrase in everyday life, too. What’s the probability of rain tomorrow? What’s the probability of winning … Continue reading

## What to Look for in Data – Part 2

What to Look for in Data – Part 1 discusses how to explore data snapshots, population characteristics, and changes. Part 2 looks at how to explore patterns, trends, and anomalies. There are many different types of patterns, trends, and anomalies, … Continue reading

Posted in Uncategorized
Tagged cats, censored data, curvilinear, cycles, data relationships, graphs, heteroskedasticity, homoskedasticity, interpolation, linear, outliers, shifts, shocks, simpson's paradox, statistics, stats wit cats, steps, time series, transformations, what to look for
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## WHAT TO LOOK FOR IN DATA – PART 1

Some activities are instinctive. A baby doesn’t need to be taught how to suckle. Most people can use an escalator, operate an elevator, and open a door instinctively. The same isn’t true of playing a guitar, driving a car, or … Continue reading

Posted in Uncategorized
Tagged cats, censored data, data, data analysis, data scrubbing, descriptive statistics, graphs, measurement scales, missing data, replicates
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## DARE TO COMPARE – PART 4

Part 3 of Dare to Compare shows how one-population statistical tests are conducted. Part 4 extends these concepts to two-population tests. To review, this flowchart summarizes the the process of statistical testing. First, you PLAN the comparison by understanding the … Continue reading

Posted in Uncategorized
Tagged ANOVA, blogs, cats, populations, statistical comparisons, statistical tests, statistics, statswithcats, t-test
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## Dare to Compare – Part 1

In school, you probably had to line up by height now and then. That wasn’t too difficult. There weren’t too many individuals being lined up and they were all in the same place at the same time. An individual’s place … Continue reading

Posted in Uncategorized
Tagged blogs, cats, Normal distribution, population, statistical comparisons, statistical tests
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## Catalog of Models

Whether you know it or not, you deal with models every day. Your weather forecast comes from a meteorological model, usually several. Mannequins are used to display how fashions may look on you. Blueprints are drawn models of objects or … Continue reading

Posted in Uncategorized
Tagged analytical, blogs, cats, data mining, deterministic, empirical, models, numeric, probabilistic, relationships, statistical, statistics, stats with cats, stochastic, theoretical
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## Hellbent on Measurement

Any variable that you record in a dataset will have some scale of measurement. Scales of measurement are, simply put, the ways that associated numbers relate to each other. Scales are properties of numbers, not the objects being measured. You … Continue reading

Posted in Uncategorized
Tagged cats, cyclic scales, interval, location, measurement, nominal, ordinal, orientation scales, ratio, Scales, statistics, Stats 101, stats with cats, Stevens, time
7 Comments

## Searching for Answers

Need to find something out, just Google it. Now that Google is a verb as well as a noun, it’s easy. But … It Hasn’t Always Been Easy Adults under 30, Millennials, grew up with smartphones, laptop and tablet computers, … Continue reading

Posted in Uncategorized
Tagged cats, Google, information, keywords, library, math, number of samples, numbercrunching, search, statistical analysis, statistics, stats with cats, views, word cloud, wordpress.com
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