What is the difference between sample variance and population variance?

Sample variance divides the sum of squared differences by (n - 1) (Bessel's correction) to provide an unbiased estimate from sample data, whereas population variance divides by n.

How is the box plot constructed?

The box plot displays the five-number summary: Minimum, First Quartile (Q1), Median (Q2), Third Quartile (Q3), and Maximum, visually representing dataset spread and skewness.

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