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Do you know probability ?

Discrete Mathematics Level 4

A point is marked at random on a unit line segment.

Find the expected value of the sum of the squares of the lengths of the two parts.

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations,
examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

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View solutions

by Keshav Tiwari

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