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## Homework Statement

Suppose that a point is chosen at random on a stick that has length 15 inches, and that the stick is broken into two pieces at that point. Find the expected value of the lengths of the two pieces.

## Homework Equations

E(x)=[tex]\sumf(x)xdx[/tex] from -infinity to +infinity (continuous case)

E(x)=[tex]\sumf(x)x[/tex] for all x (discrete case)

## The Attempt at a Solution

X

_{1}+X

_{2}=15

PLEASE HELP!!