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In this module, you will learn how to quantify the spread of the dataset by calculating the variance and standard deviation in R.
Review core concepts you need to learn to master this subject
Interpretation of Variance
Standard Deviation Units
A larger variance means the data is more spread out and values tend to be far away from the mean. A variance of 0 means all values in the dataset are the same.
Portfolio projects that showcase your new skills
In this project, you will try to find the best time to plan a trip to London by looking at a weather dataset containing over 39,000 pieces of weather-related data!
Stress-test your knowledge with quizzes that help commit syntax to memory
In the equation for variance, what does the following term represent?