理論上，樣本方差=與總體方差，樣本標(biāo)準(zhǔn)差＜總體標(biāo)準(zhǔn)差
2022-11-20 11:06 作者:五方齋公衛(wèi)考研互助 | 我要投稿
{"ops":[{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b1.sanwen.net/b_article/watermark/d15cb45cda2d33168b4f2ccb2aa02b52b357f2f8.jpg","width":2319,"height":2849,"size":3938015,"status":"loaded"}}},{"insert":"\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b1.sanwen.net/b_article/watermark/2bf7e62966e5b9a96d75e7dada72ba6445b3f981.jpg","width":2355,"height":3461,"size":4981111,"status":"loaded"}}},{"insert":"\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b1.sanwen.net/b_article/watermark/9bfd508c682493d0a240bf0432c59c129a566613.jpg","width":1221,"height":1548,"size":1275430,"status":"loaded"}}},{"insert":"\n"},{"attributes":{"class":"normal-img"},"insert":{"native-image":{"alt":"read-normal-img","url":"https://b1.sanwen.net/b_article/watermark/bc0a756d3d32d177a69a3fd21cc145c958b12362.jpg","width":2402,"height":3947,"size":5875514,"status":"loaded"}}},{"insert":"\n但，對于"},{"attributes":{"bold":true},"insert":"樣本標(biāo)準(zhǔn)差"},{"insert":"，我在Excel中做蒙特卡羅模擬，當(dāng)總體為"},{"attributes":{"color":"#f85a54","bold":true},"insert":"正態(tài)"},{"insert":"分布總體或"},{"attributes":{"color":"#f85a54","bold":true},"insert":"均勻"},{"insert":"分布總體且"},{"attributes":{"color":"#f85a54","bold":true},"insert":"樣本量較大"},{"insert":"時，樣本標(biāo)準(zhǔn)差趨近于總體標(biāo)準(zhǔn)差（正態(tài)的是從左側(cè)趨近，均勻的是趨近）。\n\n以上個人理解，如有不當(dāng)之處，請批評指正。\n"}]}標(biāo)簽：
