A 5-metre stick is broken into two pieces at random. What is the length of the shorter piece, on average?

+1 vote
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A 5-metre stick is broken into two pieces at random. What is the length of the shorter piece, on average?
posted Apr 13, 2014

1.25
because smaller stick will be between 0.1 to 2.4 size,
on average it will be 1.25

+1 vote

Expected length of smaller part will be 1/2 of 1/2*original length i.e. 5/4 m = 1.25m

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