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CodeSignal

Data Distributions and Center

via CodeSignal

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Overview

You'll explore what a data distribution is and learn to calculate the three main measures of center — mean, median, and mode. You'll also discover how outliers and skew affect these measures and how to choose the best one for any dataset.

Syllabus

  • Unit 1: Understanding Data Distributions
    • Describing Data Distributions
    • Match Data Sets To Descriptions
    • Describe The Spending Distribution
  • Unit 2: Calculating the Mean
    • Complete The Mean Statements
    • Find The Mean Commute
    • Finding The Fair Share
    • Explain What The Mean Shows
  • Unit 3: Calculating the Median
    • Complete The Median Statements
    • Find The Median
    • Finding Median From Data
    • Finding Median Home Prices
  • Unit 4: Identifying the Mode
    • Find The Mode Shown
    • Match Datasets To Mode Results
    • Finding the Mode
    • Finding Mode In Orders
  • Unit 5: Outliers and Data Skew
    • Mean and Median Practice
    • Complete Mean And Median Statements
    • Comparing Mean And Median
    • Explain Median And Outliers
  • Unit 6: Best Measure of Center
    • Choosing Center Measures
    • Match Data To Center Measures
    • Choosing Center for Shirt Sizes
    • Justify The Best Measure

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