並前往https://academy.snapask.com/zh-hk/post/Central-tendency&Measures-on-dispersion-%E9%9B%86%E4%B8%AD%E8%B6%A8%E5%8B%A2%E7%9A%84%E9%87%8F%E5%BA%A6%E5%8F%8A%E9%9B%A2%E5%B7%AE%E7%9A%84%E9%87%8F%E5%BA%A6-c1a8bfc680bc