In determining the range of an acoustic source using the triangulation method, the time at which the spherical wave front arrives at a receiving sensor must be measured accurately. Measurement errors in these times can be modeled as possessing uniform probability dis- tribution from -0.05 to 0.05 microseconds. What is the probability that a particular arrival time measurement will be in error by less than 0.01 microsecond? What does your answer mean?