Science and Education Publishing Turkish Journal of Analysis and Number Theory 2333-1232 3 1 2015 02 09 On the Increasing Monotonicity of a Sequence Originating from Computation of the Probability of Intersecting between a Plane Couple and a Convex Body 21 23 EN BAI-NI GUO School of Mathematics and Informatics, Henan Polytechnic University, Jiaozuo City, Henan Province, China FENG QI TJANT2015315 10.12691/tjant-3-1-5 2014 12 25 2015 02 01 2015 02 09 In the paper, the authors confirm the increasing monotonicity of a sequence which originates from computation of the probability of intersecting between a plane couple and a convex body.