each a positive decimal fraction.
What is the probability that
a2+ b2+c2< 1 ?
No Solution Yet | Submitted by Ady TZIDON |
Rating: 5.0000 (1 votes) |
Solution |
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Triples satisfying the inequality are equivalent to the points in the unit sphere. Here we want the first octant. The volume is 1/8*4/3*pi*1^3=pi/6. The space of all possible triples is just a unit cube with volume 1.
So the probability is pi/6 or about 0.52
Posted by Jer on 2021-06-23 11:30:29 |