並前往https://support.microsoft.com/zh-tw/office/%E5%A6%82%E4%BD%95%E4%BF%AE%E6%AD%A3-average-%E6%88%96-sum-%E5%87%BD%E6%95%B8%E4%B8%AD%E7%9A%84-value-%E9%8C%AF%E8%AA%A4-3efd0acb-b9fb-4152-aaa7-7777ea9b3d51