what does u mean in math

What does the U symbol mean in algebra? Answers. Copy. The U symbol means "union". A union of two sets means that the distinct elements of each set are combined together. For example, the union of {1,2,3} and {4,5,6} is.

What does the U symbol mean in algebra? Answers
What does the U symbol mean in algebra? Answers from i.stack.imgur.com

In statistical theory, a U-statistic is a class of statistics that is especially important in estimation theory; the letter “U” stands for unbiased. In elementary statistics, U-statistics arise naturally in.

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