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Applied Statistics: Making Sense of Data course icon

Applied Statistics: Making Sense of Data

Like Duolingo, but for Applied Statistics: Making Sense of Data. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.

For the part of you with thirty open tabs that never became anything.

82 bite-size levelsAbout 5 minutes each

Free forever · No credit card · iPhone & Android

Stat-Cat the Sphinx
Applied Statistics: Making Sense of Data
with Stat-Cat the Sphinx
82
Levels
8
Sections
5
Min/day
What you'll learn

Key ideas in Applied Statistics: Making Sense of Data

  • The mean is calculated by summing all values and dividing by the count
  • The median requires data to be ordered first
  • A single extreme value (outlier) pulls the mean toward it
  • The median is the physical middle of the data set
  • The mean can result in a number that no individual actually earns
  • The median is not affected by how high the highest value is, only its position
  • The mean's sensitivity to outliers in a dataset
  • The median's role as the middle point of a distribution
  • The mode is the only measure of center that works for non-numerical categories
  • Weighted averages give more 'weight' to items with higher credit values
  • The mode identifies the 'peak' or most frequent occurrence
  • The result is pulled toward the value with the higher weight
  • You cannot calculate a mean for words or categories
  • Treating all items as equal (simple mean) ignores the reality of course loads
  • The mean is easily inflated by a few high-earners
  • When to use the mode for categorical data
Why not just Google it

You've tried the other tabs

Wikipedia

Thirty open tabs. Four facts you actually kept.

YouTube

You watched. You nodded. By Sunday it was gone.

ChatGPT

One answer, then back to scrolling.

Online courses

Eight weeks. You meant to finish. You didn't.

Tomo gives Applied Statistics: Making Sense of Data the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.

Try a question

Here's what playing it feels like

A real question from this course. Take your best guess.

Mean, Median, and the Middle

If you are calculating the mean of five different test scores, what is your first step?

Get it right to open this lesson and 81 more in the app.

Course map

Where Applied Statistics: Making Sense of Data takes you

Master the tools of modern data analysis through real-world examples, from medical trials to market trends. Learn to separate signal from noise and make evidence-based decisions.

  1. 1

    Finding the Center and Spread

    • Summarizing the Mess
    • Measuring Variability
    • Visualizing Truth
  2. 2

    The Logic of Chance

    • Probability in Daily Life
    • Conditional Probability
  3. 3

    Counting and Modeling Events

    • The Binomial Model
    • The Poisson Model
  4. 4

    The Bell Curve and Standardization

    • Normal Distribution
    • Standardizing with Z-Scores
  5. 5

    From Samples to Populations

    • The Power of Sampling
    • The Central Limit Theorem
    • Estimating with Confidence
  6. 6

    The Logic of Hypothesis Testing

    • The Testing Framework
    • P-Values and Significance
    • Errors and Power
  7. 7

    Comparing Groups

    • T-Tests for Means
    • Paired Comparisons
    • ANOVA: Comparing Many Groups
  8. 8

    Relationships and Predictions

    • Correlation and Causation
    • Simple Linear Regression
    • Categorical Relationships

8 sections · 21 units · 82 levels. Built to play, not to enroll.

How it's taught

You pick the voice

This course
The Professor

Applied Statistics: Making Sense of Data is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.

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