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Introduction to Statistics in R

Grow your statistical skills and learn how to collect, analyze, and draw accurate conclusions from data.

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4 Hours15 Videos54 Exercises37,138 Learners4250 XPData Analyst TrackData Scientist TrackStatistician TrackStatistics Fundamentals Track

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Course Description

Statistics is the study of how to collect, analyze, and draw conclusions from data. It’s a hugely valuable tool that you can use to bring the future into focus and infer the answer to tons of questions. For example, what is the likelihood of someone purchasing your product, how many calls will your support team receive, and how many jeans sizes should you manufacture to fit 95% of the population? In this course, you'll use sales data to discover how to answer questions like these as you grow your statistical skills and learn how to calculate averages, use scatterplots to show the relationship between numeric values, and calculate correlation. You'll also tackle probability, the backbone of statistical reasoning, and learn how to conduct a well-designed study to draw your own conclusions from data.

  1. 1

    Summary Statistics


    Summary statistics gives you the tools you need to boil down massive datasets to reveal the highlights. In this chapter, you'll explore summary statistics including mean, median, and standard deviation, and learn how to accurately interpret them. You'll also develop your critical thinking skills, allowing you to choose the best summary statistics for your data.

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    What is statistics?
    50 xp
    Descriptive and inferential statistics
    100 xp
    Data type classification
    100 xp
    Measures of center
    50 xp
    Mean and median
    100 xp
    Mean vs. median
    100 xp
    Measures of spread
    50 xp
    Quartiles, quantiles, and quintiles
    100 xp
    Variance and standard deviation
    100 xp
    Finding outliers using IQR
    100 xp
  2. 2

    Random Numbers and Probability

    In this chapter, you'll learn how to generate random samples and measure chance using probability. You'll work with real-world sales data to calculate the probability of a salesperson being successful. Finally, you’ll use the binomial distribution to model events with binary outcomes.

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  3. 3

    More Distributions and the Central Limit Theorem

    It’s time to explore one of the most important probability distributions in statistics, normal distribution. You’ll create histograms to plot normal distributions and gain an understanding of the central limit theorem, before expanding your knowledge of statistical functions by adding the Poisson, exponential, and t-distributions to your repertoire.

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  4. 4

    Correlation and Experimental Design

    In this chapter, you'll learn how to quantify the strength of a linear relationship between two variables, and explore how confounding variables can affect the relationship between two other variables. You'll also see how a study’s design can influence its results, change how the data should be analyzed, and potentially affect the reliability of your conclusions.

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In the following tracks

Data Analyst Data ScientistStatisticianStatistics Fundamentals


richieRichie CottonAAN94Adel Nehme
Maggie Matsui Headshot

Maggie Matsui

Curriculum Manager at DataCamp

Maggie is a Curriculum Manager at DataCamp. She holds a Bachelor's degree in Statistics and Computer Science from Brown University, where she spent lots of time teaching math, programming, and statistics as a tutor and teaching assistant. She's passionate about teaching all things data-related and making programming accessible to everyone.
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