A horizontal line of length $5$ units is divided into two parts. If the first part is of length $X$. Find $E[X]$ where $E[\cdot]$ stands for expectation. how to approach this question ? X can take any value with equal probability .
2026-04-01 20:52:42.1775076762
expectation and geometrical probability problem
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Based on your assumptions (or lack of assumptions), $X$ follows uniform distribution on $[0,5]$ so $$E[X]=\frac{5+0}{2}=2.5$$