Variance & Std. Deviation
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What is Variance & Std. Deviation?
Variance measures the average squared deviation from the mean, and standard deviation is its square root in the original units. Both quantify how spread out data values are. Pandas computes them with var() and std(). A high standard deviation relative to the mean signals high variability in the data.
Free resources to learn Variance & Std. Deviation
More in stage 11: Matplotlib
Variance & Std. Deviation: common questions
Can I learn Variance & Std. Deviation in Hindi?
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Is this Variance & Std. Deviation tutorial for beginners?
It is lesson 83 of 112 in the free Python for Data Analysis roadmap, in stage 11, Matplotlib. If you are new to Python for Data Analysis, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.