113學測數學A考科_05

---

<單選題>將1到50這50個正整數平分成甲乙兩組，每組各25個數，使得甲組的中位數比乙組的中位數小1。試問共有幾種分法？
(1) \(C_{25}^{50}\) (2) \(C_{24}^{48}\) (3) \(C_{12}^{24}\) (4) \((C_{12}^{24})^2\) (5) \(C_{24}^{48} \cdot C_{12}^{24}\)